-1250

Appears in sequences

• Expansion of Product_{k>=1} (1 - 2x^k).at n=69A070877
• Expansion of 1/(1-x-x^2+2*x^3).at n=29A077948
• Triangle read by rows: T(n,k)=(-1)^k*(2n/(2n-k))5^(n-k)*binomial(2n-k,k) (0<=k<=n, n>=1).at n=17A104064
• Triangle read by rows: T(n,k) is the coefficient of x^k of the polynomial n(n-x)(n-2x)(n-3x)...(n-(n-1)x) (n>=1, 0<=k<=n-1).at n=13A123670
• Triangle read by rows: characteristic polynomials of Z/nZ addition tables considered as matrices.at n=20A140059
• Totally multiplicative sequence with a(p) = 5*(p-3) for prime p.at n=39A167315
• Triangle read by rows: row n gives (coefficients * n!) in expansion of pieces k=0..n-1 of the cumulative distribution function for the Irwin-Hall distribution, lowest powers first.at n=66A188668
• Irregular triangle read by rows: mean version of Girard-Waring formula A210258, for m = 5 data values.at n=12A288207
• G.f. A(x) satisfies A(x) = ( 1 + 25*x*A(x)^3 )^(1/5).at n=4A385204