Binomial sums a(n) = Sum_{k=0..n} (binomial(2n-k,k))^2.
A188648
Binomial sums a(n) = Sum_{k=0..n} (binomial(2n-k,k))^2.
Terms
- a(0) =1a(1) =2a(2) =11a(3) =63a(4) =376a(5) =2317a(6) =14545a(7) =92512a(8) =594169a(9) =3844787a(10) =25027296a(11) =163701327a(12) =1075049011a(13) =7083830648a(14) =46812088751a(15) =310118453573
External references
- oeis: A188648