49371

Appears in sequences

• Number of planted planar trees (n+1 nodes) where any 2 subtrees extending from the same node have a different number of nodes.at n=13A032009
• Numbers k with property that 19*k + {2,4,8,10} are two pairs of consecutive twin primes.at n=12A152926
• Triangle T(n, k) = A143491(n+2, k+2) + A143491(n+2, n-k+2), read by rows.at n=30A155755
• Triangle T(n, k) = A143491(n+2, k+2) + A143491(n+2, n-k+2), read by rows.at n=33A155755