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Revision History for A173526 (Bold, blue-underlined text is an addition; faded, red-underlined text is a deletion.)

Showing entries 1-10 | older changes
a(n) = 1 + A053827(n-1), where A053827 is the sum-of-digits function in base 6.
(history; published version)
#17 by Bruno Berselli at Tue Jul 02 02:59:30 EDT 2019
STATUS

reviewed

approved

#16 by Joerg Arndt at Tue Jul 02 01:54:27 EDT 2019
STATUS

proposed

reviewed

#15 by G. C. Greubel at Tue Jul 02 01:26:52 EDT 2019
STATUS

editing

proposed

#14 by G. C. Greubel at Tue Jul 02 01:26:38 EDT 2019
NAME

a(n) = 1 + A053827(n-1), where A053827 is the sum-of-digits function in base 6.

LINKS

G. C. Greubel, <a href="/A173526/b173526.txt">Table of n, a(n) for n = 1..10000</a>

FORMULA

a(n) = A053827(6^k+n-1) where k >= ceiling(log_6(n/5)). [_- _R. J. Mathar_, Dec 09 2010]

j->{j,j+1,...,j+b-1} for b=6. [_- _Joerg Arndt_, Dec 08 2010]

MATHEMATICA

Table[1 + Total[IntegerDigits[n-1, 6]], {n, 1, 110}] (* G. C. Greubel, Jul 02 2019 *)

PROG

(PARI) A053827(n)= if(n<1, 0, if(n%6, a(n-1)+1, a(n/6)));

vector(110, n, 1+A053827(n-1)) \\ G. C. Greubel, Jul 02 2019

STATUS

proposed

editing

#13 by Michel Marcus at Tue Jul 02 01:23:29 EDT 2019
STATUS

editing

proposed

#12 by Michel Marcus at Tue Jul 02 01:23:26 EDT 2019
STATUS

proposed

editing

#11 by Jon E. Schoenfield at Mon Jul 01 22:44:55 EDT 2019
STATUS

editing

proposed

#10 by Jon E. Schoenfield at Mon Jul 01 22:44:52 EDT 2019
COMMENTS

If A053827 is regarded as a triangle then the rows converge to this sequence, i.e, ., a(n) = A053827(6^k+n-1) in the limit k->infinity, where k plays the role of a row index in A053827. .

This here sequence is the base b=6 case equivalent to A063787 (b=2), A173523 (b=3), A173524 (b=4), A173525 (b=5). Generic comments concerning the various bases are in A173525.

FORMULA

a(n) = A053827(6^k+n-1) where k >= ceilceiling( log_6(n/5)). [_R. J. Mathar, _, Dec 09 2010]

Conjecture: Fixed point of the morphism 1->{1,2,3,...,b}, 2->{2,3,4,...,b+1},

j->{j,j+1,...,j+b-1} for b=6. [_Joerg Arndt, _, Dec 08 2010]

STATUS

approved

editing

#9 by Russ Cox at Fri Mar 30 18:38:19 EDT 2012
EXTENSIONS

More terms from _Vincenzo Librandi (vincenzo.librandi(AT)tin.it), _, Aug 02 2010

Discussion
Fri Mar 30
18:38
OEIS Server: https://oeis.org/edit/global/215
#8 by Russ Cox at Fri Mar 30 17:34:04 EDT 2012
AUTHOR

_Omar E. Pol (info(AT)polprimos.com), _, Feb 20 2010

Discussion
Fri Mar 30
17:34
OEIS Server: https://oeis.org/edit/global/157