20475

Appears in sequences

• Binomial coefficient binomial(n,4) = n*(n-1)*(n-2)*(n-3)/24.at n=28A000332
• Number of compositions of n into 5 ordered relatively prime parts.at n=24A000743
• Degrees of irreducible representations of Rudvalis group Ru.at n=7A003918
• a(n) = binomial coefficient C(2n, n-10).at n=4A004316
• Binomial coefficient C(4n,n-3).at n=4A004333
• Binomial coefficient C(7n,n).at n=4A004368
• a(n) is the number of unlabeled modular lattices on n nodes.at n=16A006981
• Expansion of Product_{k>=1} (1 - x^k)^15.at n=34A010822
• Binomial coefficient C(28,n).at n=24A010944
• Binomial coefficient C(28,n).at n=4A010944
• a(n) = binomial coefficient C(n,24).at n=4A010977
• a(n) = 225*(n-1)*(n-2)/2.at n=12A027470
• a(n) = (n+1)*binomial(n+1,4).at n=11A027764
• a(n) = (n+1)*binomial(n+1,11).at n=4A027771
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 11.at n=14A031689
• Triangle of rooted planar maps.at n=40A046651
• a(n) = binomial(n, floor(n/6)).at n=28A051053
• Binomial coefficients C(2*n+4,4).at n=12A053134
• Table by antidiagonals of number of ways of choosing k items from n*k.at n=51A060539
• a(n) = binomial(4*n,4).at n=6A060541