22896531856
domain: N
Appears in sequences
- Expansion of 1/((1-x^2)*(1-4*x+x^2)).at n=18A072335
- Expansion of g.f. (2+7*x+2*x^2)/((x^2-1)*(1+4*x+x^2)).at n=19A097947
- Member r=16 of the family of Chebyshev sequences S_r(n) defined in A092184.at n=10A098301
- Number of 2 X n array permutations with each element moving zero or one space horizontally or diagonally.at n=18A189450