Geometrically weak primes: primes that are smaller than the geometric mean of their neighbors (2 is included by convention).
2, 3, 7, 13, 19, 23, 31, 43, 47, 61, 73, 83, 89, 103, 109, 113, 131, 139, 151, 167, 181
3 seqfan posts
Thu Jun 16 06:03:32 CEST 2011 [seqfan] Re: Q A139312 simple prime indicator function
Thu Jun 16 00:20:25 CEST 2011 [seqfan] Re: Q A139312 simple prime indicator function
Wed Jun 15 23:41:36 CEST 2011 [seqfan] Q A139312 simple prime indicator function
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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