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A308894 Positions of 3's on the spiral defined in A308890. 0
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Add 1 to the terms of A308888.

LINKS

Table of n, a(n) for n=1..65.

CROSSREFS

Cf. A308884-A308895.

Sequence in context: A241267 A241848 A146331 * A031956 A095393 A301601

Adjacent sequences:  A308891 A308892 A308893 * A308895 A308896 A308897

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 01 2019

STATUS

approved

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Last modified October 17 13:32 EDT 2021. Contains 348049 sequences. (Running on oeis4.)