36143

Appears in sequences

• Number of planted identity trees where non-root, non-leaf nodes an even distance from root are of degree 2.at n=22A007560
• Convolution of natural numbers with (1, p(1), p(2), ... ), where p(k) is the k-th prime.at n=39A023538
• a(n) = a(n-1) + a(m) for n >= 4, where m = 2*n - 2 - 2^(p+1) and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = a(2) = 1 and a(2) = 4.at n=33A050039
• Number of forests of B-trees of order 3 with n labeled leaves.at n=25A058518
• a(n) = 2^n+n^3.at n=15A097339