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 A174033 #8 Feb 08 2025 01:25:19 %S A174033 1,1,1,1,7,1,1,19,19,1,1,49,130,49,1,1,110,599,599,110,1,1,236,2376, %T A174033 4826,2376,236,1,1,487,8578,31220,31220,8578,487,1,1,997,29200,176378, %U A174033 312223,176378,29200,997,1,1,2018,95630,909937,2619425,2619425,909937,95630,2018,1 %N A174033 T(n, m) = Sum_{i=0..10} floor(Eulerian(n+1, m)/2^i). %F A174033 T(n, m) = Sum_{i=0..10} floor(Eulerian(n+1, m)/2^i), where Eulerian(n, k) = A008292(n, k). %e A174033 Triangle begins: %e A174033 {1}, %e A174033 {1, 1}, %e A174033 {1, 7, 1}, %e A174033 {1, 19, 19, 1}, %e A174033 {1, 49, 130, 49, 1}, %e A174033 {1, 110, 599, 599, 110, 1}, %e A174033 {1, 236, 2376, 4826, 2376, 236, 1}, %e A174033 {1, 487, 8578, 31220, 31220, 8578, 487, 1}, %e A174033 {1, 997, 29200, 176378, 312223, 176378, 29200, 997, 1}, %e A174033 {1, 2018, 95630, 909937, 2619425, 2619425, 909937, 95630, 2018, 1}, %e A174033 ... %t A174033 << DiscreteMath`Combinatorica` %t A174033 Sum[Floor[Eulerian[n + 1, m]/2^i], {i, 0, 10}]; %t A174033 Table[Table[t[n, m], {m, 0, n}], {n, 0, 10}]; %t A174033 Flatten[%] %Y A174033 Cf. A008292, A176200. %K A174033 nonn,tabl,uned,less %O A174033 0,5 %A A174033 _Roger L. Bagula_, Mar 06 2010