Sum of 12 but no fewer nonzero fourth powers.
12, 27, 42, 57, 72, 92, 107, 122, 137, 152, 172, 187, 192, 202, 217, 232, 252, 267
2 seqfan posts
Wed Aug 18 04:58:00 CEST 2010 [seqfan] Re: not all prime
Wed Aug 18 03:34:41 CEST 2010 [seqfan] Re: not all prime
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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