68761

Appears in sequences

• a(n) = 2*a(n-2)+5*a(n-3), n>6.at n=18A107229
• Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 0100-1100-1111 pattern in any orientation.at n=10A146790
• a(n) is the denominator of the resistance R(n) = A338401(n)/a(n) of a triangular network of 3*n*(n+1)/2 one Ohm resistors in a hexagonal lattice arrangement.at n=6A338402
• a(n) is the denominator of the expected end time of a game with three gamblers, one of which starts with capital n, the others with capital 1 each, conditional on the event that one of the two poor players wins.at n=5A366996