1533939

Appears in sequences

• Fermat coefficients.at n=20A000972
• Binomial coefficients C(2*n+5,5).at n=21A002299
• Binomial coefficient C(47,n).at n=5A010963
• Binomial coefficient C(n,42).at n=5A010995
• a(n) = binomial(prime(3+n), prime(3)).at n=12A126996
• Member k=6 of a family of generalized Catalan numbers.at n=6A130565
• a(n) = binomial(2^n + 3*n, n).at n=5A132688
• a(n) = binomial(n^2, n) / ( n*(n+1) ).at n=5A177784
• a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/6)} a(6*k) * a(n-1-6*k).at n=41A386380