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%I #7 Aug 13 2024 16:28:27
%S 1,3,4,6,10,16,26,52,108,240,574,1566,4542,14998,51080,193986,776946,
%T 3396530,15302498,75908634,384194222,2104919470,11853419616,
%U 71548745928,440446031112,2912298313022,19496636176860,139215008197810,1012273345561864,7779962149588026
%N a(n) = Sum_{k=1..n} abs(A375383(n, k)).
%Y Cf. A375383.
%K nonn
%O 1,2
%A _Peter Luschny_, Aug 13 2024