OEIS/Spirals: Revision history

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4 December 2024

  • curprev 10:0010:00, 4 December 2024‎ Gfis talk contribs‎ 1,846 bytes +1,846‎ Created page with "===Hexagonal grid, counterclockwise=== Cf. [https://oeis.org/A056105 A056105] First spoke of a hexagonal spiral. From Robert G. Wilson v, Jul 05 2014: (Start) Each of the 6 primary spokes or rays has a generating formula as stated here: 1st: 90 degrees A056105 3n^2 - 2n + 1 2nd: 30 degrees A056106 3n^2 - n + 1 3rd: 330 degrees A056107 3n^2 + 1 4th: 270 degrees A056108 3n^2 + n + 1 5th: 210 degrees A056109 3n^2 + 2n + 1 6th: 150 degrees A003215 3n^2 + 3n..."
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