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 A209427 #16 Jan 03 2018 21:58:10 %S A209427 1,1,1,1,4,1,1,27,27,1,1,256,1296,256,1,1,3125,100000,100000,3125,1,1, %T A209427 46656,11390625,64000000,11390625,46656,1,1,823543,1801088541, %U A209427 64339296875,64339296875,1801088541,823543,1,1,16777216,377801998336,96717311574016,576480100000000,96717311574016,377801998336,16777216,1 %N A209427 T(n,k) = binomial(n,k)^n. %C A209427 Row sums equals A167010. %C A209427 Column 1 forms A000312. %C A209427 Antidiagonal sums form A209428. %H A209427 Paul D. Hanna, <a href="/A209427/b209427.txt">Rows n = 0..30, flattened.</a> %e A209427 This triangle begins: %e A209427 1; %e A209427 1, 1; %e A209427 1, 4, 1; %e A209427 1, 27, 27, 1; %e A209427 1, 256, 1296, 256, 1; %e A209427 1, 3125, 100000, 100000, 3125, 1; %e A209427 1, 46656, 11390625, 64000000, 11390625, 46656, 1; %e A209427 1, 823543, 1801088541, 64339296875, 64339296875, 1801088541, 823543, 1; %e A209427 1, 16777216, 377801998336, 96717311574016, 576480100000000, 96717311574016, 377801998336, 16777216, 1; ... %t A209427 Table[Binomial[n,k]^n, {n,0,10}, {k,0,n}]// Flatten (* _G. C. Greubel_, Jan 03 2018 *) %o A209427 (PARI) {T(n,k)=binomial(n,k)^n} %o A209427 for(n=0,10,for(k=0,n,print1(T(n,k),","));print("")) %Y A209427 Cf. A167010 (row sums), A000312 (column 1), A209428. %K A209427 nonn,tabl %O A209427 0,5 %A A209427 _Paul D. Hanna_, Mar 08 2012