446560

Appears in sequences

• Square array, read by antidiagonals, where row n+1 is generated from row n by first removing terms in row n at positions {floor(m*(m+7)/6), m>=0} and then taking partial sums, starting with all 1's in row 0.at n=48A136217
• Triangle U, read by rows, where column k of U^(j+1) = column j of P^(3k+1) for j>=0, k>=0 and P=A136220.at n=29A136228
• Column 1 of triangle A136228; also equals column 3 of square array A136217.at n=6A136229
• Triangle, read by rows, equal to the matrix 4th power of triangle A136220.at n=21A136232