742620

Appears in sequences

• Triangle P, read by rows, where column k of P^3 equals column 0 of P^(3k+3) such that column 0 of P^3 equals column 0 of P shift one row up, with P(0,0)=1.at n=38A136220
• Column 2 of triangle A136220; also equals column 0 of U^3 = A136236 where U = A136228.at n=6A136223
• Matrix cube of triangle U = A136228, read by rows.at n=21A136236