A296347 Numbers in cells in spiral A274820 on spoke through center with slope 240 degrees.

0, 1, 3, 6, 12, 8, 10, 17, 14, 23, 18, 26, 31, 24, 25, 29, 30, 40, 36, 37, 38, 39, 41, 59, 46, 66, 47, 48, 52, 54, 56, 73, 61, 84, 86, 63, 68, 75, 95, 69, 72, 74, 77, 80, 82, 85, 90, 93, 116, 94, 109, 102, 100, 107, 99, 132, 103, 106, 113, 110, 114, 115, 117

Offset: 0

Author

N. J. A. Sloane, Dec 16 2017

Keywords

• nonn

Comments

It is conjectured that this and A296344 together are a permutation of the nonnegative numbers.

Links

• Rémy Sigrist, Table of n, a(n) for n = 0..2500
• Rémy Sigrist, PARI program for A296347

Crossrefs

Cf. A274820, A296343, A296344, A296345, A296346, A296348.

Programs

PARI

See Links section.

Extensions

More terms from Rémy Sigrist, Dec 17 2017