The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A209868 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A209868

a(n) = number of integers in range [2^(n-1),(2^n)-1] which permutation A209861/A209862 sends to even-sized orbits.
(history; published version)

#15 by Russ Cox at Fri Mar 30 17:23:15 EDT 2012

AUTHOR

Antti Karttunen (_Antti. Karttunen(AT)gmail.com), _, Mar 24 2012

Discussion

Fri Mar 30

17:23

OEIS Server: https://oeis.org/edit/global/125

#14 by N. J. A. Sloane at Sun Mar 25 01:50:29 EDT 2012

STATUS

reviewed

approved

#13 by Antti Karttunen at Sat Mar 24 18:28:58 EDT 2012

STATUS

proposed

reviewed

#12 by Antti Karttunen at Sat Mar 24 18:28:53 EDT 2012

STATUS

editing

proposed

#11 by Antti Karttunen at Sat Mar 24 18:28:34 EDT 2012

NAME

a(n) = number of integers in range [2^(n-1),(2^n)-1] which permutation A209861/A209862 sends to even-sized orbits.

STATUS

reviewed

editing

Discussion

Sat Mar 24

18:28

Antti Karttunen: Added one white space to the name.

#10 by Antti Karttunen at Sat Mar 24 18:27:53 EDT 2012

STATUS

proposed

reviewed

#9 by Antti Karttunen at Sat Mar 24 18:27:39 EDT 2012

STATUS

editing

proposed

#8 by Antti Karttunen at Sat Mar 24 18:26:53 EDT 2012

CROSSREFS

a(n) = A000079(n-1) - A209867(n) for all n>0. Cf. A209860, A209863, A209864, A209865, A209866.

STATUS

approved

editing

Discussion

Sat Mar 24

18:27

Antti Karttunen: Corrected on the crossrefs line the equation linking this with A000079 and A209867. (Sorry, it's hard to see certain errors before the sequence is available in no-draft format!)

#7 by N. J. A. Sloane at Sat Mar 24 18:10:50 EDT 2012

STATUS

editing

approved

#6 by N. J. A. Sloane at Sat Mar 24 18:10:48 EDT 2012

NAME

a(n) = Number number of integers in range [2^(n-1),(2^n)-1] which permutation A209861/A209862 sends to even-sized orbits.

STATUS

approved

editing