1469696

Appears in sequences

• tanh(arctan(tanh(x)))=x-6/3!*x^3+176/5!*x^5-12016/7!*x^7...at n=4A012227
• On a 3 X 3 board, number of n-move routes of chess king ending in a given side square.at n=9A086347
• Non-vanishing traces of the powers of the adjacency matrix for the simple Lie algebra B_4: 2 * ((2 + sqrt(2))^n + (2 - sqrt(2))^n).at n=11A265185