368130

Appears in sequences

• Number of 7-ary search trees on n keys.at n=19A019501
• Number of length 6 nonnegative integer arrays starting and ending with 0 with adjacent elements unequal but differing by no more than n.at n=20A205343
• T(n,k)=Number of idempotent n X n 0..k matrices of rank n-2.at n=32A224118
• Number of idempotent 5X5 0..n matrices of rank 3.at n=3A224119