A376060 Lexicographically earliest sequence of positive integers a(0), a(1), a(2), a(3), ... such that for any n > 0, S(n) = Sum_{k = 0..n-1} Catalan(k)/a(k) < 1.

2, 3, 13, 391, 426973, 546916547269, 940084230410591812263433, 2872214670866692695441731060944339347071024216683

Offset: 0

Author

N. J. A. Sloane, Sep 14 2024

Keywords

• nonn
• base

Crossrefs

Cf. A000108, A374663, A375516, A375531, A375532, A375781, A375522, A376048-A376059, A376061.

Formula

a(n+1) = Catalan(n+1)*A376061(n) + 1.