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%I #6 Apr 13 2023 14:35:36
%S 1,2,7,11,26,40,81,111,196,254,429,515,790,944,1383,1599,2210,2548,
%T 3413,3851,5084,5588,7131,7841,9862,10672,13177,14179,17130,18448,
%U 21989,23541,27846,29574,34709,36649,42486,44888,51723,54365,62128,65230,73881,77593
%N a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n+1-k), where k = [ (n+1)/2 ], s = (1, p(1), p(2), ...).
%Y Cf. A008578.
%K nonn
%O 1,2
%A _Clark Kimberling_
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