120389
domain: N
Appears in sequences
- Number of n-node triangulations of the Klein bottle N_2 in which every node has degree >= 5.at n=7A129048
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (0, 1, -1), (0, 1, 1), (1, 0, 1), (1, 1, 0)}.at n=8A151195
- Number of 3Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=10A239860