A394225 a(n) is the number of new, distinct point-like intersections created after the n-th step of the process described at A394915.

0, 1, 0, 2, 2, 3, 3, 4, 7, 3, 6, 0, 6, 0, 9, 0, 5, 8, 0, 8, 9, 0, 11, 17, 11, 10, 12, 13, 15, 21, 16, 17, 15, 25, 16, 17, 0, 23, 19, 0, 21, 32, 20, 25, 19, 37, 0, 23, 21, 28, 24, 25, 37, 0, 0, 0, 26, 26, 27, 30, 41, 48, 34, 29, 33, 49, 33, 43, 35, 39, 0, 49, 0, 0, 44, 0, 54, 41, 54, 54

Offset

1,4

Links

Paolo Xausa, Table of n, a(n) for n = 1..1000

Mathematica

Join[{0}, Differences[A394915list[100]]] (* A394915list is defined at A394915 *)

Crossrefs

Cf. A394915 (partial sums), A395161.

Sequence in context: A367843 A164529 A153906 * A067619 A236972 A184351

Adjacent sequences: A394222 A394223 A394224 * A394226 A394227 A394228

Keyword

nonn

Author

Paolo Xausa, Apr 10 2026

Status

approved