77559

Appears in sequences

• a(0) = 1, a(n) = 1 + 2*3 + 4*5 + 6*7 + ... + (2n)*(2n+1) for n > 0.at n=38A098931
• Number of distinct board states reachable in n jumps, in English Peg Solitaire.at n=8A335656