Exponential (or binomial) half-convolution of the sequence A000108 (Catalan) with itself.

A203577

Exponential (or binomial) half-convolution of the sequence A000108 (Catalan) with itself.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =11a(4) =58a(5) =212a(6) =1304a(7) =5567a(8) =37734a(9) =178148a(10) =1284124a(11) =6501420a(12) =48758648a(13) =259775440a(14) =2000594288a(15) =11080668871a(16) =86930955662a(17) =496461841956

External references