a(n) = Sum_{k=0..n} binomial(8*k,k) / (7*k + 1).
A346672
a(n) = Sum_{k=0..n} binomial(8*k,k) / (7*k + 1).
Terms
- a(0) =1a(1) =2a(2) =10a(3) =102a(4) =1342a(5) =19620a(6) =305004a(7) =4943352a(8) =82595376a(9) =1412486081a(10) =24602515801a(11) =434935956337
External references
- oeis: A346672