G.f. A(x) satisfies A(x) = 1 / (1 - x*A(x) / (1-x))^4.
A371486
G.f. A(x) satisfies A(x) = 1 / (1 - x*A(x) / (1-x))^4.
Terms
- a(0) =1a(1) =4a(2) =30a(3) =260a(4) =2465a(5) =24796a(6) =260008a(7) =2811216a(8) =31117240a(9) =350890260a(10) =4016744586a(11) =46556054072a(12) =545273713228
External references
- oeis: A371486