A350511 a(n) is the unique k such that A124145(n) is the sum of k consecutive terms among the first n-1 terms of A124145.

2, 2, 3, 2, 3, 4, 5, 2, 3, 4, 6, 2, 4, 5, 2, 2, 4, 2, 3, 5, 2, 6, 7, 3, 2, 5, 3, 6, 3, 8, 9, 5, 3, 6, 4, 2, 2, 8, 9, 10, 3, 2, 2, 8, 5, 11, 2, 6, 3, 4, 11, 2, 3, 4, 2, 5, 2, 6, 3, 9, 7, 10, 2, 11, 7, 5, 2, 3, 2, 3, 2, 4, 2, 12, 4, 13, 7, 3, 8, 2, 5, 3, 11, 4

Offset

3,1

Links

Rémy Sigrist, Table of n, a(n) for n = 3..10000

Rémy Sigrist, PARI program for A350511

Formula

a(n) > 1.

Example

For n = 5:
- the first 5 terms of A124145 are: 1, 2, 3, 5, 6,
- A124145(5) = 6 = 1 + 2 + 3 = A124145(1) + A124145(2) + A124145(3),
- so a(5) = 3.

Prog

(PARI) See Links section.

Crossrefs

Cf. A124145.

Sequence in context: A029248 A085916 A286535 * A324344 A059711 A318287

Adjacent sequences: A350508 A350509 A350510 * A350512 A350513 A350514

Keyword

nonn

Author

Rémy Sigrist, Jan 02 2022

Status

approved