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 A206562 #19 Sep 25 2016 18:03:42 %S A206562 1,3,2,5,3,3,11,8,4,4,15,10,8,5,5,31,24,16,10,6,6,39,28,22,16,12,7,7, %T A206562 71,56,40,31,19,14,8,8,94,72,58,40,32,22,16,9,9,150,120,90,72,52,37, %U A206562 25,18,10,10,196,154,124,94,74,54,42,28,20,11,11 %N A206562 Triangle read by rows: T(n,k) = sum of all parts >= k in the last section of the set of partitions of n. %H A206562 Alois P. Heinz, <a href="/A206562/b206562.txt">Rows n = 1..141, flattened</a> %e A206562 Triangle begins: %e A206562 1; %e A206562 3, 2; %e A206562 5, 3, 3; %e A206562 11, 8, 4, 4; %e A206562 15, 10, 8, 5, 5; %e A206562 31, 24, 16, 10, 6, 6; %e A206562 39, 28, 22, 16, 12, 7, 7; %e A206562 71, 56, 40, 31, 19, 14, 8, 8; %e A206562 94, 72, 58, 40, 32, 22, 16, 9, 9; %Y A206562 Columns 1-2 give A138879, A138880. Diagonal is A000027. %Y A206562 Cf. A135010, A138121, A182703, A206561, A207031, A207032. %K A206562 nonn,tabl %O A206562 1,2 %A A206562 _Omar E. Pol_, Feb 15 2012