This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A143125 #2 Mar 30 2012 17:25:29
%S A143125 1,5,11,23,38,62,90,122,167,217,272,344,422,506
%N A143125 Sum {j=1..n} j*A001462(j).
%F A143125 Sum {j=1..n} j*A001462(j), where A001462 = Golomb's sequence, (1, 2, 2, 3, 3, 4, 4, 4,...). Row sums of triangle A143124.
%e A143125 a(4) = 23 = 1*1 + 2*2 + 3*2 + 4*12 = (1 + 4 + 6 + 12), given Golomb's sequence (1, 2, 2, 3, 3, 4, 4, 4,...).
%e A143125 a(4) = 23 = sum of row 4 terms of triangle A143124: (8 + 7 + 5 + 3).
%Y A143125 Cf. A001462, A143124.
%K A143125 nonn
%O A143125 1,2
%A A143125 _Gary W. Adamson_, Jul 26 2008