109296

Appears in sequences

• Self-convolution omits 1's at positions of triangular numbers less one.at n=32A105613
• Self-convolution of A105613.at n=25A105614
• Number of 4-step one or two space at a time rook's tours on an n X n board summed over all starting positions.at n=18A187289
• Number of nX2 0..2 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=16A200771
• Number of distinct subsemigroups of the multiplicative semigroup of integers modulo n.at n=62A272213
• Number of A'Campo forests of degree n>1 and co-dimension 2.at n=4A277877