65918160

Appears in sequences

• Numbers k such that k+1 and k/2+1 are squares.at n=5A008845
• a(n+3) = a(n+2) + 3*a(n+1) + a(n).at n=23A111352
• a(n) = (3*b(n) + b(n-1) + 1)/2, where b = A005409.at n=19A328990