131613

Appears in sequences

• Crystal ball sequence for hexagonal close-packing.at n=33A007202
• Triangle, read by rows, equal to the matrix inverse of R=A113389.at n=21A114159
• Number of (n+1)X2 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=4A204756
• Number of (n+1)X6 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=0A204760
• T(n,k)=Number of (n+1)X(k+1) 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=10A204763
• T(n,k)=Number of (n+1)X(k+1) 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=14A204763