73408

Appears in sequences

• Number of 5-step one or two space at a time rook's tours on an n X n board summed over all starting positions.at n=7A187290
• a(n) = A213709(n) - A255071(n).at n=26A254119
• Number of sets of nonempty words with a total of n letters over septenary alphabet containing the seventh letter such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.at n=6A293888
• Number of series-reduced rooted trees whose leaves are multisets with a total of n elements covering an initial interval of positive integers.at n=6A330469
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A381568.at n=61A381567