A308889 Positions of 4's on the spiral defined in A308884.

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

Offset

1,1

Links

Michael S. Branicky, Table of n, a(n) for n = 1..10000

Rémy Sigrist, PARI program for A308889

Prog

(PARI) /* See Links section. */
(Python) # uses code/imports in A308884 and A308885
print(list(islice(A308885_gen(t=4), 45))) # Michael S. Branicky, Feb 05 2026

Crossrefs

Cf. A308884-A308895.

Sequence in context: A214139 A215656 A367738 * 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