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A308889 Positions of 4's on the spiral defined in A308884. 2
148, 151, 217, 353, 658, 662, 663, 667, 685, 692, 715, 746, 1210, 1275, 1280, 1459, 1466, 1544, 1826, 2188, 2277, 2282, 2521, 2528, 2630, 2996, 3454, 3567, 3572, 3871, 3878, 4004, 4454, 5008, 5145, 5150, 5509, 5516, 5666, 6200, 6850, 7011, 7016, 7435, 7442 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..45.

Rémy Sigrist, PARI program for A308889

PROG

(PARI) See Links section.

CROSSREFS

Cf. A308884-A308895.

Sequence in context: A097729 A214139 A215656 * A214619 A061154 A252690

Adjacent sequences:  A308886 A308887 A308888 * A308890 A308891 A308892

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 01 2019

EXTENSIONS

More terms from Rémy Sigrist, Jul 02 2019

STATUS

approved

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Last modified September 25 10:14 EDT 2020. Contains 337337 sequences. (Running on oeis4.)