66879

Appears in sequences

• Diagonal sums of number triangle A113582.at n=35A154324
• a(n) = (A006935(n) - 1) / ord(2,A006935(n)/2), where ord(k,m) is the multiplicative order of k modulo m.at n=11A350083
• Partials sums of the cubefull numbers (A036966).at n=40A362971