A174535 Odd almost practical numbers.

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

Offset: 1

Author

T. D. Noe, Mar 21 2010

Keywords

• nonn

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.