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A308891 Positions of 0's on the spiral defined in A308890. 0
1, 2, 3, 4, 21, 26, 31, 36, 37, 38, 41, 42, 43, 48, 49, 50, 55, 56, 57, 64, 66, 71, 80, 89, 95, 96, 111, 113, 115, 116, 122, 124, 126, 127, 133, 135, 138, 139, 142, 144, 145, 146, 148, 150, 151, 153, 155, 156, 157, 163, 166, 168, 169, 170, 176, 179, 181, 182, 183, 196, 198, 209, 215, 224 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Add 1 to the terms of A308885.

LINKS

Table of n, a(n) for n=1..64.

CROSSREFS

Cf. A308884-A308895.

Sequence in context: A225466 A225472 A176234 * A058780 A183458 A109787

Adjacent sequences:  A308888 A308889 A308890 * A308892 A308893 A308894

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 01 2019

STATUS

approved

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Last modified September 17 11:16 EDT 2021. Contains 347478 sequences. (Running on oeis4.)