23095

Appears in sequences

• First differences of A005579.at n=23A005347
• Sum of Manhattan distances over all self-avoiding n-step walks on square lattice. Numerator of mean Manhattan displacement s(n) = a(n)/A046661(n).at n=8A078798
• a(n) = A165966(n)/12.at n=24A166119
• a(n) = (27^n-4^n)/23.at n=4A180847
• Number of n X 2 0..1 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.at n=13A202973
• Number of cusps in a class of degree-3n complex algebraic surfaces.at n=15A225018
• Number of nX5 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=7A300766