20349
domain: N
Appears in sequences
- Binomial coefficients C(n,5).at n=21A000389
- Coefficients of Legendre polynomials.at n=5A001796
- Binomial coefficients C(2*n+5,5).at n=8A002299
- 4-dimensional figurate numbers: a(n) = (5*n-1)*binomial(n+2,3)/4.at n=17A002418
- a(n) = binomial(3n+6, n).at n=5A003408
- Triangle of coefficients of expansions of powers of x in terms of Legendre polynomials P_n(x) over common denominator.at n=36A008317
- Binomial coefficient C(21,n).at n=5A010937
- Binomial coefficient C(21,n).at n=16A010937
- a(n) = binomial(n,16).at n=5A010969
- Triangular array formed from odd elements to right of middle of rows of Pascal's triangle.at n=51A014475
- Binomial coefficients: C(n,k), 5 <= k <= n-5, sorted, duplicates removed.at n=22A024757
- a(n) = binomial(2*n+1, n-5).at n=5A030055
- T(n,5), array T as in A050186; a count of aperiodic binary words.at n=16A050190
- a(n) = binomial(n, floor(n/4)).at n=21A051036
- a(n) = (4n+1)*binomial(4n,n)/(3n+1).at n=5A052203
- Expansion of 1/(1 - 3*x^2 - x^3).at n=17A052931
- a(n) = binomial(n, round(sqrt(n))).at n=21A055789
- Triangular array T(n,k) giving number of connected graphs with n labeled nodes and k edges (n >= 1, 0 <= k <= n(n-1)/2).at n=57A062734
- Integers i > 1 for which there is no prime p such that i is a solution mod p of x^4 = 2.at n=35A065903
- Triangle read by rows: T(n,k) = C( C(n,2), k) for n >= 0, 0 <= k <= C(n,2).at n=47A084546