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A174535 Odd almost practical numbers. 3
945, 1575, 2205, 2835, 3465, 4095, 4725, 5355, 5775, 5985, 6615, 6825, 7245, 7875, 8085, 8505, 9135, 9555, 9765, 10395, 11025, 11655, 12285, 12705, 12915, 13545, 14175, 14805, 15015, 15435, 16065, 16695, 17325, 17955, 18585, 19215, 19635 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

This is Stewart's set O*. Note that 15 divides all such numbers. This sequence appears to be a subsequence of the odd abundant numbers, A005231. See A174533 for additional comments.

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..1000

B. M. Stewart, Sums of distinct divisors, American Journal of Mathematics, Vol. 76, No. 4 (1954), pp. 779-785.

CROSSREFS

Cf. A174533, A174534.

Sequence in context: A252185 A005231 A174865 * A243104 A006038 A287646

Adjacent sequences:  A174532 A174533 A174534 * A174536 A174537 A174538

KEYWORD

nonn

AUTHOR

T. D. Noe, Mar 21 2010

STATUS

approved

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Last modified October 15 15:03 EDT 2019. Contains 328030 sequences. (Running on oeis4.)