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 A260419 #21 Nov 30 2015 10:35:42 %S A260419 1,1,1,1,3,1,1,3,4,1,1,5,16,11,1,1,5,16,27,16,1,1,7,25,125,81,42,1,1, %T A260419 7,49,125,256,378,64,1,1,9,49,243,1296,1184,729,163,1,1,9,64,343,1296, %U A260419 3125,4096,2187,256,1,1,11,100,729,2401,16807,15625,27213,9529,638,1 %N A260419 Square array T(n,m) read by antidiagonals, T(n,m) is the number of (m,n)-parking functions. %C A260419 T(n,2) appears to be A027306(n). %H A260419 Alois P. Heinz, <a href="/A260419/b260419.txt">Antidiagonals n = 1..141, flattened</a> %H A260419 Jean-Christophe Aval, François Bergeron, <a href="http://arxiv.org/abs/1503.03991">Interlaced rectangular parking functions</a>, arXiv:1503.03991 [math.CO], 2015. %F A260419 T(n,m) = m^(n-1), if m and n are coprime (see Lemma in Aval & Bergeron link). %e A260419 Table starts (see Table 1 in Aval & Bergeron link): %e A260419 n/m 1 2 3 4 5 %e A260419 ------------------------------ %e A260419 1 |1, 1, 1, 1, 1, ... %e A260419 2 |1, 3, 3, 5, 5, ... %e A260419 3 |1, 4, 16, 16, 25, ... %e A260419 4 |1, 11, 27, 125, 125, ... %e A260419 5 |1, 16, 81, 256, 1296, ... %e A260419 6 |... %Y A260419 Cf. A071201. %K A260419 nonn,tabl %O A260419 1,5 %A A260419 _Michel Marcus_, Jul 25 2015 %E A260419 More terms from _Alois P. Heinz_, Nov 30 2015