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 A112432 Carmichael numbers equal to the product of 9 primes. 9
 9746347772161, 11537919313921, 11985185775745, 14292786468961, 23239986511105, 24465723528961, 26491881502801, 27607174936705, 30614445878401, 30912473358481, 34830684315505, 51620128928641 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Amiram Eldar, Table of n, a(n) for n = 1..10000 EXAMPLE a(1) = 9746347772161 = 7*11*13*17*19*31*37*41*641. PROG (PARI) is(n)={omega(n)==9&&is_A002997(n)} \\ M. F. Hasler, Apr 14 2015 CROSSREFS Cf. A002997, A087788, A141711, A074379, A112428, A112429, A112430, A112431, A006931. Sequence in context: A017532 A175272 A104833 * A230100 A122966 A288264 Adjacent sequences: A112429 A112430 A112431 * A112433 A112434 A112435 KEYWORD easy,nonn AUTHOR Shyam Sunder Gupta, Dec 11 2005 STATUS approved

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Last modified December 7 12:12 EST 2022. Contains 358656 sequences. (Running on oeis4.)