A307283 P-positions (indices of 0 values) along the spiral in A307282.

0, 25, 31, 37, 43, 86, 96, 106, 116, 122, 134, 146, 158, 363, 383, 403, 423, 847, 877, 907, 937, 1114, 1148, 1182, 1216, 1529, 1569, 1609, 1649, 2035, 2081, 2127, 2173, 2438, 2488, 2538, 2588, 2821, 2875, 2929, 2983, 3494, 3554, 3614, 3674, 4239, 4305, 4371

Offset: 1

Author

N. J. A. Sloane, Apr 05 2019

Keywords

• nonn

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..1409 (-1000 <= x <= 1000 and -1000 <= y <= 1000)
• Rémy Sigrist, PARI program for A307283

Crossrefs

Cf. A307282.

For coordinates of the two lines of P-positions in the fourth quadrant (the hard-to-see black dots) see A307284-A307287.

Programs

PARI

See Links section.

Extensions

More terms from Rémy Sigrist, Apr 06 2019