155834

Appears in sequences

• Sums of adjacent amicable numbers, a(n) = A063990(2n-1) + A063990(2n).at n=11A161005
• Number of 3Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors equal to itself.at n=23A266013
• Number of n X 6 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=10A281203