66952

Appears in sequences

• Number of n X 2 binary arrays whose sum with another n X 2 binary array containing no more than two 1s has rows and columns in lexicographically nondecreasing order.at n=14A225976
• Number of nX3 0..1 arrays with no element equal to more than two of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=8A281395
• Expansion of (1/x) * Series_Reversion( x / ((1+x)^6 + x^2) ).at n=5A388538