18325

Appears in sequences

• Number of trees on n nodes with forbidden limbs.at n=16A014270
• Triangle of number of falls in set partitions of n.at n=60A056859
• 63-gonal numbers: a(n) = n*(61*n - 59)/2.at n=25A098140
• Base-9 Keith numbers.at n=30A188200
• Number of partitions of n, where the difference between the number of odd parts and the number of even parts is 2.at n=50A240011
• a(n) is the number of regions formed by n-secting the angles of a nonagon (enneagon).at n=32A335781
• Number of integer partitions of n such that (maximum) <= 2*(median).at n=49A361848
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f. B(x)^k, where B(x) is the e.g.f. of A384983.at n=49A384986