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.
Array begins: =================================== h\k | 0 1 2 3 4 5 6 7 ----+------------------------------ 0 | 1 1 1 1 1 1 1 1 ... 1 | 1 1 2 3 4 5 6 7 ... 2 | 1 2 2 5 9 14 20 27 ... 3 | 1 3 5 5 14 28 48 75 ... 4 | 1 4 9 14 28 56 104 179 ... 5 | 1 5 14 28 28 84 188 367 ... 6 | 1 6 20 48 76 84 272 639 ... 7 | 1 7 27 75 151 235 272 911 ... ...
A(h, k=h)={my(M=matrix(h+1, k+1, i, j, 1)); for(h=1, h, for(k=1, k, M[1+h, 1+k] = M[h, 1+k] + if(4*k>3*h && 4*(k-1)<3*h, 0, M[1+h, k]))); M}
{ my(T=A(10)); for(i=1, #T, print(T[i, ]))} \\ Andrew Howroyd, Jan 19 2020