G.f. A(x) satisfies: 1 = Sum_{n>=0} x^n*A(-x)^A131507(n), where A131507 is defined as "2*n+1 appears n times.".
A193040
G.f. A(x) satisfies: 1 = Sum_{n>=0} x^n*A(-x)^A131507(n), where A131507 is defined as "2*n+1 appears n times.".
Terms
- a(0) =1a(1) =1a(2) =2a(3) =7a(4) =29a(5) =129a(6) =600a(7) =2889a(8) =14293a(9) =72228a(10) =371208a(11) =1934236a(12) =10194853a(13) =54258010a(14) =291175463a(15) =1573878211a(16) =8560931357a(17) =46825444031a(18) =257386132988
External references
- oeis: A193040