63848
domain: N
Appears in sequences
- a(n) = 13 + floor(Sum_{j=1..n-1} a(j)/2).at n=21A120140
- a(n) = Sum_{i=0..n} digsum_6(i)^4, where digsum_6(i) = A053827(i).at n=47A231675
- Number of noncrossing path sets on n nodes up to rotation and reflection with isolated vertices allowed.at n=11A303835
- Number of length n words over the alphabet [4] such that any prefix satisfies c(1) >= c(3), c(1) >= c(4), c(2) >= c(3), and c(2) >= c(4), where c(i) is the number of occurrences of the letter i.at n=10A391270