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 A055652 #6 Mar 30 2012 18:51:26 %S A055652 2,1,1,1,2,1,1,3,3,1,1,4,8,4,1,1,5,17,17,5,1,1,6,32,54,32,6,1,1,7,57, %T A055652 145,145,57,7,1,1,8,100,368,512,368,100,8,1,1,9,177,945,1649,1649,945, %U A055652 177,9,1,1,10,320,2530,5392,6250,5392,2530,320,10,1,1,11,593,7073 %N A055652 Table T(m,k)=m^k+k^m (with 0^0 taken to be 1) as square array read by antidiagonals. %F A055652 E.g.f. Sum(n,m, T(n,m)/(n! m!)) = e^(x e^y) + e^(y e^x). [From _Franklin T. Adams-Watters_, Oct 26 2009] %Y A055652 Columns and rows are A000012 (apart from first term), A000027, A001580, A001585, A001589, A001593 etc. Diagonals include A013499 (apart from first two terms), A051442, A051489. %Y A055652 Cf. A055651. %Y A055652 Contribution from _Franklin T. Adams-Watters_, Oct 26 2009: (Start) %Y A055652 Rows/columns: A000027, A001580, A001585, A001589, A001593, A001594, A001596. %Y A055652 Main diagonal is 2 * A000312. More diagonals: A051442, A051489, A155539. %Y A055652 Cf. A076980, A156353, A156354. (End) %K A055652 easy,nonn,tabl %O A055652 0,1 %A A055652 _Henry Bottomley_, Jun 08 2000