A308893 Positions of 3's on the spiral defined in A308890.

8, 9, 14, 15, 17, 20, 24, 30, 44, 51, 52, 54, 58, 63, 74, 75, 78, 84, 92, 93, 98, 99, 103, 104, 105, 106, 107, 108, 114, 117, 118, 120, 128, 130, 136, 141, 158, 164, 171, 172, 174, 178, 180, 184, 195, 213, 222, 228, 243, 246, 248, 249, 251, 254, 258, 259, 260, 261, 263, 264, 265, 266

Offset

1,1

Comments

Add 1 to the terms of A308887.

Links

Table of n, a(n) for n=1..62.

Crossrefs

Cf. A308884-A308895.

Sequence in context: A105741 A286475 A334915 * A083134 A299143 A068780

Adjacent sequences: A308890 A308891 A308892 * A308894 A308895 A308896

Keyword

nonn

Author

N. J. A. Sloane, Jul 01 2019

Extensions

Definition corrected by N. J. A. Sloane, Feb 08 2026 at the suggestion of Scott R. Shannon.

Status

approved