Number of ordered pairs of endofunctions f,g on a set of n elements satisfying f(f(f(x))) = g(g(g(x))).
A235326
Number of ordered pairs of endofunctions f,g on a set of n elements satisfying f(f(f(x))) = g(g(g(x))).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =51a(4) =1504a(5) =66525a(6) =4196856a(7) =359031967a(8) =39705044464
External references
- oeis: A235326