119441

Appears in sequences

• Number of (n+1) X (n+1) 0..2 arrays with every 2 X 2 subblock summing to 4 and no 2 X 2 subblock having exactly two nonzero entries.at n=9A251142
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of e.g.f.: exp(Sum_{j>=1} j^(k-1)*A000009(j)*x^j).at n=50A293908
• Numerators of an infinite series that converges to the negative inverse of Backhouse's constant (A088751).at n=22A368862