References to A155025

Primes p=A000040(n) with non-prime index n such that the concatenation n//p is a composite number.
2, 19, 23, 29, 43, 47, 53, 71, 73, 79, 89, 97, 101, 107, 131, 137, 139, 163, 167, 173


4 seqfan posts

Fri Oct 9 02:38:44 CEST 2009    [seqfan] Re: Edit of A155030
Fri Oct 9 02:23:12 CEST 2009    [seqfan] Re: Edit of A155030
Fri Oct 9 02:14:37 CEST 2009    [seqfan] Re: Edit of A155030
Fri Oct 9 01:56:38 CEST 2009    [seqfan] Edit of A155030

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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