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A088902
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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.
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0
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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; refs; listen; history; internal format)
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OFFSET
| 1,2
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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.
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CROSSREFS
| Cf. A056239, A000700.
Sequence in context: A093840 A129233 A106529 * A095967 A047161 A048083
Adjacent sequences: A088899 A088900 A088901 * A088903 A088904 A088905
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KEYWORD
| easy,nonn
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AUTHOR
| Naohiro Nomoto (pcmusume(AT)m11.alpha-net.ne.jp), Nov 28 2003
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EXTENSIONS
| More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Aug 26 2005
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