33680

Appears in sequences

• Small-number statistic from the enumeration of domino tilings of a 5-pillow of order n.at n=18A112838
• For every positive integer m, let u(m) = (d(1),d(2),...,d(k)) be the unitary divisors of m. The sequence (a(n)) consists of integers of the form d(k)/d(1) + d(k-1)/d(2) + ... + d(k)/d(1).at n=14A229999
• Number of length n arrays of permutations of 0..n-1 with each element moved by -4 to 4 places and with no two consecutive increases or two consecutive decreases.at n=12A263662