60957
domain: N
Appears in sequences
- a(n) = a(n-1) + 2*a(n-3) with a(0)=a(1)=1, a(2)=3.at n=21A003229
- Expansion of Product_{m>=1} (1 + m*q^m)^9.at n=7A022637
- "BIK" (reversible, indistinct, unlabeled) transform of 1,2,3,4...at n=12A032126
- Expansion of 1/(1-x-2*x^3).at n=22A077949
- Expansion of 1/(1+x+2*x^3).at n=22A077974
- Number of nondecreasing arrangements of n+2 numbers in 0..5 with each number being the sum mod 6 of two others.at n=18A183908
- Coefficient of x^2 in the reduction of the polynomial (x^2 + 2)^n by x^3 -> x^2 + 2.at n=8A192810
- Number of nX3 0..1 arrays with every element unequal to 0, 1, 2, 6 or 7 king-move adjacent elements, with upper left element zero.at n=20A305035