61541

Appears in sequences

• Odd numbers k that divide Lucas(k) + 1.at n=22A094399
• a(n)=(n^4-n^3-n^2-n)/2.at n=19A171129
• Main diagonal of Ludic array A255127 (and A255129): a(n) = A255127(n,n).at n=37A255410