A112431 Carmichael numbers equal to the product of 8 primes.

232250619601, 306177962545, 432207073585, 576480525985, 658567396081, 689702851201, 747941832001, 1013666981041, 1110495895201, 1111586883121, 1286317859905, 1292652236161, 1341323384401, 1471186523521, 1567214060545

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000

Example

a(1) = 232250619601 = 7*11*13*17*31*37*73*163.

Prog

(PARI) is(n)={bigomega(n)==8&&is_A002997(n)} \\ M. F. Hasler, Apr 14 2015

Crossrefs

Cf. A002997, A087788, A141711, A074379, A112428, A112429, A112430, A112432, A006931.

Sequence in context: A185430 A221263 A172614 * A202725 A132908 A271820

Adjacent sequences: A112428 A112429 A112430 * A112432 A112433 A112434

Keyword

easy,nonn

Author

Shyam Sunder Gupta, Dec 11 2005

Status

approved