23146

Appears in sequences

• Expansion of g.f. x^3/(1 - 2*x + x^3 - x^4).at n=16A059633
• a(n) is the numerator of c(n), where c(n) is calculated from Product_{i>=1}(1-c(i)*x^i) = exp(-(x^2)/(1-x))*(1-x).at n=44A259027
• a(0) = 1, a(n) = Sum_{k=1..n} a(n-k)*ceiling(sin(k)).at n=17A265826
• p-INVERT of the positive integers, where p(S) = 1 - 3*S + S^2.at n=6A291025