111376

Appears in sequences

• Sequence arising from the factorization of F(n) = A083102(n-1) and L(n) = A127261. F(0) = 0, F(1) = 1, F(n) = 2*F(n-1)+10*F(n-2), L(0) = 2, L(1) = 2, L(n) = 2*L(n-1)+10*L(n-2).at n=23A127608
• Array read by antidiagonals: T(n,k) is the number of k-tuples of involutions on [n] that pairwise commute.at n=61A362824