19134

Appears in sequences

• A Langford-like sequence.at n=40A108401
• Irregular triangle T(n, k) = [x^k]( p(n, x) ), where p(n, x) = (1-x)^(2*n+3)*( Sum_{j >= 0} (2*j+ 1)^n*x^j )*( Sum_{j >= 0} j^(n+1)*x^j ), read by rows.at n=20A165883
• Constant term in the reduction of the n-th Fibonacci polynomial by x^3->x^2+2. See Comments.at n=15A192798
• a(n) = 12345*10^n + 6789.at n=0A367650