a(n) = 332640*4^n*Gamma(n + 1/2)/(sqrt(Pi)*Gamma(n + 7)); super ballot numbers, row 5 of A135573.

A348899

a(n) = 332640*4^n*Gamma(n + 1/2)/(sqrt(Pi)*Gamma(n + 7)); super ballot numbers, row 5 of A135573.

Terms

    a(0) =462a(1) =132a(2) =99a(3) =110a(4) =154a(5) =252a(6) =462a(7) =924a(8) =1980a(9) =4488a(10) =10659a(11) =26334a(12) =67298a(13) =177100a(14) =478170a(15) =1320660a(16) =3721860a(17) =10680120a(18) =31150350a(19) =92205036a(20) =276615108a(21) =840090328a(22) =2580277436a(23) =8007757560a(24) =25090973688a(25) =79319852304a(26) =252832029219a(27) =812127124158

External references