72425
domain: N
Appears in sequences
- Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 1,2,0,3.at n=5A037693
- Concatenation of primitive Pythagorean triangles, sorted.at n=2A138043
- Number of compositions c of n such that no three points (i,c_i), (j,c_j), (k,c_k) are collinear, where c_i denotes the i-th part.at n=25A238686