55648
domain: N
Appears in sequences
- a(n) = 8*a(n-1) + 10*a(n-2), with a(0)=0, a(1)=1.at n=6A190953
- Triangular array: the fission of ((x+2)^n) by ((x+1)^n).at n=32A193846
- Mirror of the triangle A193846.at n=31A193847
- The second Zagreb index of the Aztec diamond AZ(n) (see the Ramanes et al. reference, Theorem 2.2).at n=28A292345
- Intersection of A046346 and (A046346-2).at n=8A309310
- Number of subsets of {1..n} containing n such that every ordered pair of distinct elements has a different quotient.at n=19A325868