81635

Appears in sequences

• Structured triakis octahedral numbers (vertex structure 4).at n=28A100171
• a(n) = n*(n+1)*(20*n-17)/6.at n=29A172117
• Number of (n+2) X (4+2) 0..1 arrays with no 3 x 3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 1 and no column sum 1.at n=23A257443
• Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic nonresidues mod p .at n=27A282726