66645

Appears in sequences

• 2-ranks of difference sets constructed from Glynn type II hyperovals.at n=15A049114
• Number of length 3+3 0..n arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.at n=23A248540
• Triangle read by rows: T(n,k) is the number of unoriented colorings of the facets of a regular n-dimensional orthotope using exactly k colors. Row n has 2n columns.at n=46A325009