25778

Appears in sequences

• Coordination sequence for root lattice B_3.at n=36A022145
• Number of winning length n strings with a 2-symbol alphabet in "same game".at n=15A035615
• Number of (n+1) X 4 0..2 matrices with each 2 X 2 subblock idempotent.at n=14A224671
• a(n) = 3*a(n-2) + a(n-3) + a(n-5) - 3*a(n-6) - a(n-7), where a(0) = 2, a(1) = 4, a(2) = 7, a(3) = 14, a(4) = 25, a(5) = 47, a(6) = 88, a(7) = 166.at n=15A287185