A375857 Left border of triangle A375761.

2, 3, 4, 5, 7, 8, 10, 9, 11, 13, 14, 15, 17, 16, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74

Offset: 1

Author

Rémy Sigrist, Sep 01 2024

Keywords

• nonn

Examples

			a(5) = A375761(5, 1) = 7.
		

Links

• Rémy Sigrist, PARI program

Crossrefs

Cf. A035311, A375761, A375846.

Programs

PARI

\\ See Links section.

Formula

a(n) = A375761(n, 1).