119966

Appears in sequences

• a(n) = (1)*(2 + 3 + 4 + ... + n) + (1 + 2)*(3 + 4 + 5 + ... + n) + (1 + 2 + 3)*(4 + 5 + 6 + ... + n) + ... + (1 + 2 + 3 + ... + n-1)*n.at n=19A067056
• Numerator of Euler(n, 11/25).at n=4A156990
• a(n) = n^2 with each digit repeated.at n=13A248126