a(n) = tau( prime(n)*prime(prime(n)) - 1 ).
2, 4, 8, 4, 12, 12, 8, 16, 18, 16, 24, 30, 8, 6, 12, 12, 4, 24, 72, 8, 32, 8, 24, 24, 6, 8, 24
2 seqfan posts
Mon Jun 28 22:19:26 CEST 2010 [seqfan] Re: What defines A133992
Mon Jun 28 21:36:52 CEST 2010 [seqfan] What defines A133992
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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