54264
domain: N
Appears in sequences
- Figurate numbers or binomial coefficients C(n,6).at n=21A000579
- Expansion of (1-4*x)^(3/2) in powers of x.at n=13A002421
- a(n) = binomial(3*n, n - 1).at n=6A004319
- Binomial coefficient C(21,n).at n=6A010937
- Binomial coefficient C(21,n).at n=15A010937
- a(n) = binomial(n,15).at n=6A010968
- a(n) = binomial(n*(n+1)/2, n).at n=6A014068
- Fibonacci sequence beginning 0, 21.at n=18A022355
- Theta series of A*_18 lattice.at n=39A023930
- Binomial coefficients: C(n,k), 6 <= k <= n-6, sorted.at n=34A024750
- Binomial coefficients: C(n,k), 6 <= k <= n-6, sorted.at n=35A024750
- Binomial coefficients: C(n,k), 5 <= k <= n-5, sorted, duplicates removed.at n=34A024757
- Binomial coefficients: C(n,k), 6 <= k <= n-6, sorted, duplicates removed.at n=19A024758
- a(n) = binomial(2n+1,n-4).at n=6A030054
- "DHK[ 6 ]" (bracelet, identity, unlabeled, 6 parts) transform of 1,1,1,1,...at n=32A032247
- Expansion of Product_{k>=1} (1 + 3*x^k).at n=30A032308
- Number of ways to place two nonattacking queens on an n X n board.at n=18A036464
- a(n) = binomial(n, floor((n-8)/2)).at n=21A037958
- Expansion of 1/((1-x)^7 - x^7).at n=13A049017
- Binomial coefficients C(2*n-5,6).at n=7A053128