81280

Appears in sequences

• Number of n X 5 binary arrays with all 1s connected, a path of 1s from upper left corner to lower right corner, and no 1 having more than two 1s adjacent.at n=7A163688
• Number of n X 8 binary arrays with all 1's connected, a path of 1's from upper left corner to lower right corner, and no 1 having more than two 1's adjacent.at n=4A163691
• Expansion of e.g.f.: 1/(1-tan(sin(x))).at n=8A190123
• Numbers which have only digits 0 and 1 in bases 3 and 5.at n=10A268337
• a(1) = 1, a(n+1) is the numerator of n-th partial fraction of the continued fraction [1; 3, 9, 27, ..., 3^n].at n=4A280219