A308894 Positions of 3's on the spiral defined in A308890.

18, 19, 23, 27, 28, 29, 33, 34, 39, 40, 46, 47, 53, 60, 61, 77, 102, 109, 119, 125, 129, 131, 147, 154, 159, 160, 161, 167, 173, 175, 177, 185, 186, 187, 189, 190, 192, 193, 194, 200, 207, 219, 237, 287, 293, 297, 299, 303, 327, 333, 334, 340, 345, 346, 351, 359, 365, 371, 373, 383, 384, 390, 391, 397, 398

Offset: 1

Author

N. J. A. Sloane, Jul 01 2019

Keywords

• nonn

Comments

Add 1 to the terms of A308888.

Crossrefs

Cf. A308884-A308895.