1038312

Appears in sequences

• a(n) = (2^n/n!) * Product_{k=0..n-1} (4*k + 3).at n=7A004982
• Weight distribution of hypothetical [ 24,12,10 ] trace-self-dual additive code over GF(4).at n=11A030331
• Coordination sequence for lattice D*_92 (with edges defined by l_1 norm = 1).at n=3A035831
• Triangle T(n,k) = d(n-k,n), 0 <= k <= n, where d(l,m) = Sum_{k=l..m} 2^k * binomial(2*m-2*k, m-k) * binomial(m+k, m) * binomial(k, l).at n=35A067001
• Triangle read by rows in which row n gives coefficients of polynomial R_n(y) that satisfies R_n(1/2) = 4^n, where R_n(y) forms the initial (n+1) terms of g.f. A077860(y)^(n+1).at n=35A097179
• O.g.f: -12*x^3/(-1+x)/(-1+2*x)/(-1+3*x) = -2-2/(-1+3*x)-6/(-1+x)+6/(-1+2*x) .at n=9A118979
• Array of T(n,m)=1*5*...*(4n-3)*3*7*...*(4m-1)*2^(n+m)/(n+m)! by antidiagonals.at n=35A122882
• Coefficients of a polynomial representation of the integral of 1/(x^4 + 2*a*x^2 + 1)^(n+1) from x = 0 to infinity.at n=28A126936
• a(n) = 3*binomial(n+1,7).at n=17A253944