Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A088902
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A088902 Numbers n such that n = product (p_k)^(c_k) and set of its (c_k k's)'s is a self-conjugate partition, where p_k is k-th prime and c_k > 0. +0
1
1, 2, 6, 9, 20, 30, 56, 75, 84, 125, 176, 210, 264, 350, 416, 441, 624, 660, 735, 1088, 1100, 1386, 1560, 1632, 1715, 2310, 2401, 2432, 2600, 3267, 3276, 3648, 4080, 5390, 5445, 5460, 5888, 6800, 7546, 7722, 8568, 8832, 9120, 12705, 12740, 12870, 13689 (list; graph; listen)
OFFSET

1,2

EXAMPLE

20 is in the sequence because 20 = 2^2 * 5^1 = (p_1)^2 *(p_3)^1, (two 1's, one 3's) = (1,1,3) is a self-conjugate partition of 5.

CROSSREFS

Cf. A056239, A000700.

Sequence in context: A093840 A129233 A106529 this_sequence A095967 A047161 A048083

Adjacent sequences: A088899 A088900 A088901 this_sequence A088903 A088904 A088905

KEYWORD

easy,nonn

AUTHOR

Naohiro Nomoto (pcmusume(AT)m11.alpha-net.ne.jp), Nov 28 2003

EXTENSIONS

More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Aug 26 2005

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


AT&T Labs Research