18309
domain: N
Appears in sequences
- Number of complete partitions of n.at n=38A126796
- Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1101-0111-0010 pattern in any orientation.at n=10A147240
- 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, -1), (-1, 0, 0), (0, -1, 1), (0, 1, -1), (1, 1, 1)}.at n=8A149615
- Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (-1, 0), (-1, 1), (0, 1), (1, 0)}.at n=9A151421
- Number of permutations of 1..n containing the relative rank sequence { 352614 } at any spacing.at n=3A159174
- Numbers n such that 4n+1 is a palindromic prime.at n=36A192261
- Growth series for affine Coxeter group B_4.at n=31A267167
- Harary index of the n X n bishop graph.at n=18A296197
- a(n) = (4*n^3 + 12*n^2 - 4*n + 3)/3.at n=23A322594
- Index of first occurrence of n in A364197.at n=43A364198
- Place n equally spaced points around the circumference of a circle and then, for each pair of points, draw two distinct circles, whose radii are the same as the first circle, such that both points lie on their circumferences. The sequence gives the total number of (curved) edges formed.at n=16A371375