A343389 The ordered square-spiral numbers visited by the knight in A343388.

1, 24, 11, 4, 9, 6, 15, 2, 7, 46, 21, 72, 75, 42, 19, 38, 105, 202, 151, 104, 147, 262, 199, 102, 67, 36, 61, 32, 3, 28, 51, 124, 85, 128, 53, 30, 59, 96, 141, 250, 189, 316, 251, 392, 315, 474, 563, 660, 769, 1006, 767, 658, 879, 762, 555, 462, 553, 756, 873, 998, 761, 556, 381, 460, 305

Offset

1,2

Comments

This is the ordered square-spiral numbers visited by a knight on a square spiral as numbered in A343388. See that sequence for further details.

Links

Table of n, a(n) for n=1..65.

Scott R. Shannon, Image showing the 359 visited squares. The spiral is numbered with the ordered spiral numbers. The starting square is highlighted in white, the visited squares in yellow, the path is colored across the spectrum to show the relative step ordering, and the final square is highlighted in red.

Crossrefs

Cf. A343388, A343356, A316667, A323714, A323808, A329519, A329520, A335844.

Sequence in context: A040556 A070663 A241441 * A267024 A259337 A118983

Adjacent sequences: A343386 A343387 A343388 * A343390 A343391 A343392

Keyword

nonn,fini

Author

Scott R. Shannon, Apr 13 2021

Status

approved