10035200

Appears in sequences

• Exponential self-convolution of Pell numbers (divided by 2).at n=12A006668
• 2-enumeration of 2n X 2n half-turn symmetric alternating-sign matrices.at n=5A057170
• On a 3 X 3 board, number of n-move routes of chess king ending in the central square.at n=10A086348
• Number of domino tilings of the order n Aztec diamond which are centrally symmetric.at n=9A372145