Sum of heights of all 2-watermelons with wall of length 2*n.
A136440
Sum of heights of all 2-watermelons with wall of length 2*n.
Terms
- a(0) =3a(1) =11a(2) =60a(3) =406a(4) =3171a(5) =27411a(6) =255617a(7) =2528613a(8) =26224097a(9) =282706396a(10) =3147801820a(11) =36022733951a(12) =422047425238
External references
- oeis: A136440