56605

Appears in sequences

• Matrix 5th power of Stirling2 triangle A008277.at n=16A039813
• Numbers k such that k^2 is formed from two subsquares that overlap in a single digit.at n=20A048422
• a(1) = 1 thereafter a(n) = Sum_{k=1..n-1} ceiling(a(n-k)/k).at n=23A100482
• Expansion of e.g.f. (exp(exp(exp(exp(exp(x)-1)-1)-1)-1)-1)^2 / 2.at n=4A351515