The On-Line Encyclopedia of Integer Sequences (OEIS)

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A154717

Products of three distinct happy primes A035497.
(history; published version)

#8 by Russ Cox at Sat Mar 31 13:22:27 EDT 2012

EXTENSIONS

a(5) - a(38) from _Nathaniel Johnston (nathaniel(AT)nathanieljohnston.com), _, Apr 30 2011

Discussion

Sat Mar 31

13:22

OEIS Server: https://oeis.org/edit/global/888

#7 by Russ Cox at Fri Mar 30 17:33:59 EDT 2012

AUTHOR

_Omar E. Pol (info(AT)polprimos.com), _, Jan 18 2009

Discussion

Fri Mar 30

17:33

OEIS Server: https://oeis.org/edit/global/157

#6 by Nathaniel Johnston at Sat Apr 30 22:11:36 EDT 2011

STATUS

proposed

approved

#5 by Nathaniel Johnston at Sat Apr 30 22:11:32 EDT 2011

DATA

1729, 2093, 2821, 3059, 4123, 4991, 5681, 7189, 7657, 8827, 9269, 9373, 9919, 10507, 12649, 12719, 12901, 13547, 13699, 14497, 15197, 15617, 16583, 17143, 17549, 17563, 18487, 19513, 21049, 21749, 22211, 22351, 22379, 23621, 23653, 23933, 23959, 25441

KEYWORD

more,easy,nonn,base

EXTENSIONS

a(5) - a(38) from Nathaniel Johnston (nathaniel(AT)nathanieljohnston.com), Apr 30 2011

STATUS

approved

proposed

#4 by Charles R Greathouse IV at Tue Nov 23 23:32:51 EST 2010

STATUS

proposed

approved

#3 by Charles R Greathouse IV at Tue Nov 23 23:32:49 EST 2010

KEYWORD

more,nonn,base

STATUS

approved

proposed

#2 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010

COMMENTS

Note that a(1)=1729 is the Hardy-Ramanujan number (See see taxicab numbers in A001235, A011541).

KEYWORD

more,nonn,new

#1 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009

NAME

Products of three distinct happy primes A035497.

DATA

1729, 2093, 2821, 3059

OFFSET

1,1

COMMENTS

Note that a(1)=1729 is the Hardy-Ramanujan number (See taxicab numbers in A001235, A011541).

CROSSREFS

Cf. A001235, A011541, A035497, A154716, A154728, A154729.

KEYWORD

more,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Jan 18 2009

STATUS

approved