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 A369526 #36 Jan 28 2024 20:56:48
%S A369526 1,2,1,5,1,1,8,1,1,1,15,2,1,1,1,26,4,1,1,1,1,45,10,1,1,1,1,1,76,20,1,
%T A369526 1,1,1,1,1,135,26,1,1,1,1,1,1,1,238,31,2,1,1,1,1,1,1,1,425,35,4,1,1,1,
%U A369526 1,1,1,1,1,768,41,10,1,1,1,1,1,1,1,1,1
%N A369526 Table read by upward antidiagonals: T(n,k) = number of nonempty subsets of {1..n} for which the average is the k-th power of an integer.
%e A369526 T(8,3) = 2 subsets {1}, {8} of {1..8} with a cube average.
%e A369526 Table begins:
%e A369526 1, 1, 1, 1, 1, ...
%e A369526 2, 1, 1, 1, 1, ...
%e A369526 5, 1, 1, 1, 1, ...
%e A369526 8, 2, 1, 1, 1, ...
%e A369526 15, 4, 1, 1, 1, ...
%e A369526 26, 10, 1, 1, 1, ...
%e A369526 45, 20, 1, 1, 1, ...
%e A369526 76, 26, 2, 1, 1, ...
%e A369526 135, 31, 4, 1, 1, ...
%e A369526 238, 35, 10, 1, 1, ...
%e A369526 425, 41, 32, 1, 1, ...
%e A369526 768, 63, 106, 1, 1, ...
%e A369526 1399, 143, 310, 1, 1, ...
%e A369526 2570, 399, 760, 1, 1, ...
%e A369526 4761, 1083, 1520, 1, 1, ...
%e A369526 8856, 2554, 2522, 2, 1, ...
%e A369526 16567, 5078, 3630, 4, 1, ...
%e A369526 31138, 8596, 4708, 10, 1, ...
%e A369526 58733, 12772, 5670, 32, 1, ...
%e A369526 111164, 17222, 6484, 118, 1, ...
%Y A369526 Cf. A051293, A369391.
%K A369526 tabl,nonn
%O A369526 1,2
%A A369526 _Jean-Marc Rebert_, Jan 25 2024