A030633 - OEIS

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A030633

Numbers with 15 divisors.

144, 324, 400, 784, 1936, 2025, 2500, 2704, 3969, 4624, 5625, 5776, 8464, 9604, 9801, 13456, 13689, 15376, 16384, 21609, 21904, 23409, 26896, 29241, 29584, 30625, 35344, 42849, 44944, 55696, 58564, 59536, 60025, 68121, 71824, 75625 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`Numbers of the form p^14 (subset of A010802) or p^2*q^4 where p and q are distinct primes. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 01 2010]`
	LINKS	`R. J. Mathar, Table of n, a(n) for n = 1..1000`
	MATHEMATICA	`Select[Range[300000], DivisorSigma[0, #]==15&] (* From Vladimir Joseph Stephan Orlovsky, May 05 2011 *)`
	CROSSREFS	`Cf. A030630, A030631, A030632.` `Sequence in context: A134341 A125841 A154051 * A189988 A034285 A178972` `Adjacent sequences: A030630 A030631 A030632 * A030634 A030635 A030636`
	KEYWORD	`nonn`
	AUTHOR	`Jeff Burch (jmburch(AT)osprey.smcm.edu)`

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Last modified February 17 17:51 EST 2012. Contains 206061 sequences.