56102

Appears in sequences

• Generalized Fibonacci numbers A_{n,2}.at n=34A006207
• Number of n X n 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.at n=7A280548
• Number of 4-regular 4-edge-connected planar simple graphs on n vertices.at n=19A292515