1767845

Appears in sequences

• Triangle W, read by rows, where column k of W = column 0 of W^(k+1) for k>=0 such that W equals the matrix cube of P = A136220 with column 0 of W = column 0 of P shift up one row.at n=29A136231
• Matrix square of triangle W = A136231; also equals P^6, where P = triangle A136220.at n=21A136235