24374

Appears in sequences

• a(1) = a(2) = a(3) = 1; for n>3, a(n) = a(n-1) + a(n-2) + a(n-3) iff n-1 is prime, otherwise a(n) = a(n-1) + 1.at n=36A113057
• E.g.f. satisfies A(x) = 1 + (exp(x) - 1) * A(exp(x) - 1).at n=6A213357
• Expansion of g.f. A(x) satisfying 2 = Sum_{n=-oo..+oo} (-1)^n * x^(2*n) * (2*A(x) + x^(n-2))^(n+1).at n=9A363107