-287
domain: Z
Appears in sequences
- a(n+1) = a(n) - n (if n is even), a(n+1) = a(n) * n (if n is odd).at n=7A047907
- Coefficient array for certain numerator polynomials N6(n,x), n >= 0 (rising powers of x).at n=54A063261
- Bessel polynomial y_n(-3).at n=3A065923
- Expansion of (1-x)^(-1)/(1-x^2+2*x^3).at n=17A077884
- a(n) = -a(n-2) + 2*a(n-4) - a(n-10).at n=18A089135
- Expansion of x*(1 - x)/(1 - x + x^2)^3.at n=40A104555
- G.f.: Product_{k>0} (1-x^(2k-1))/(1-x^(2k)).at n=23A106507
- Matrix inverse of triangle A107862.at n=16A107865
- Row sums of A128586.at n=13A128587
- Triangle read by rows: T(r,c)=T(r,c-1)+T(r,c+1)+T(r-1,c-1).at n=72A129392
- Expansion of (1-5*x-x^2+x^3)/((1+x)*(1-x)^3).at n=16A141354
- Sum of termwise product of mu(k) and reduced residue system k mod n.at n=47A143729
- Antidiagonal expansion of the polynomials: f(x,n) = 1/(exp(t) - Sum_{i=1..n} t^i/i!).at n=27A144452
- Expansion of 1/(1-x*(1-9*x)).at n=6A146078
- Numerator of Hermite(n, 1/24).at n=2A159949
- Numerator of Hermite(n, 15/32).at n=2A160397
- The Beta triangle read by rows.at n=19A160480
- Second right hand column of the Beta triangle A160480.at n=4A160483
- a(0)=1, a(1)=1; thereafter a(n) = -a(n-1) - 2*a(n-2).at n=19A169998
- a(n)=1-4*n-4*n^2.at n=8A184882