Expansion of e.g.f. exp( 2 * (1-sqrt(1-4*x)) ).
A369723
Expansion of e.g.f. exp( 2 * (1-sqrt(1-4*x)) ).
Terms
- a(0) =1a(1) =4a(2) =24a(3) =208a(4) =2464a(5) =37824a(6) =720256a(7) =16450816a(8) =439245312a(9) =13440572416a(10) =464007387136
External references
- oeis: A369723