Exponential self-convolution of numbers of rooted trees on n nodes.
A006850
Exponential self-convolution of numbers of rooted trees on n nodes.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =20a(4) =74a(5) =290a(6) =1196a(7) =5102a(8) =22418a(9) =100762a(10) =462184a(11) =2155896a(12) =10211440a(13) =49013520a(14) =238127606a(15) =1169523872a(16) =5801045062a(17) =29033594556a(18) =146509374164a(19) =744892740620
External references
- oeis: A006850