References to A025104

a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (composite numbers), t = (odd natural numbers).
12, 20, 58, 78, 154, 190, 307, 361, 525, 599, 829, 927, 1235, 1361, 1742, 1898, 2358


1 seqfan posts

Mon Feb 15 14:27:38 CET 2010    [seqfan] Re: Number of points with maximum norm n in A2, A3, A4, A5, D5

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