367296043198
domain: N
Appears in sequences
- Sum of the squares of the a(n)-th and the (a(n)+1)st triangular numbers (A000217) is a perfect square.at n=14A065113
- Expansion of (1+4*x+x^2)/((1-x^2)*(1-2*x-x^2)); a Pellian-related sequence.at n=29A114696
- Number of dominating subsets with k vertices in all the graphs G(n) (n>=1) obtained by taking n copies of the path P_3 and identifying one of their endpoints (a star with n branches of length 2).at n=29A213667
- Expansion of (x^4+x^3-x^2+x)/(x^3+x^2-3*x+1).at n=31A265278