50479

Appears in sequences

• a(n) = 7^n - 6^n - 5^n - 4^n - 3^n - 2^n.at n=2A137789
• Nimsum of pairs of consecutive Lucas numbers.at n=21A165794
• Partial sums of primes of form n^2 + (n+1)^2 + (n+2)^2 (A027864).at n=10A248373
• G.f.: Sum_{n=-oo..+oo} x^(n*(n+1)/2) * C(x)^(4*n-6), where C(x) = 1 + x*C(x)^2 is the g.f. of the Catalan numbers (A000108).at n=16A355864