-3192
domain: Z
Appears in sequences
- a(0)=1, a(n)=n*(a(n-1)-2).at n=6A165793
- Series reversion of x+x^3+x^4.at n=12A217359
- G.f.: Sum_{n>=0} x^n * (1-x)^A003188(n), where A003188(n) = n XOR [n/2] is the Gray code for n.at n=19A227527
- G.f.: Product_{m>0} (1 - x^m + 2!*x^(2*m) - 3!*x^(3*m) + 4!*x^(4*m)).at n=21A293256
- Partial sums of F(1) - L(1) + F(2) - L(2) + F(3) - L(3) + ..., where F = A000045 and L = A000032.at n=31A355018