A185413 A000027 written clockwise as spiral and read counterclockwise.
2, 1, 4, 3, 12, 11, 10, 9, 8, 7, 6, 5, 16, 15, 14, 13, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 36, 35, 34, 33, 32, 31, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 64, 63, 62, 61, 60, 59, 58, 57
Offset: 1
Examples
21--22--23--24--25--26
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20 7---8---9--10 27
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19 6 1---2 11 28
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18 5---4---3 12 29
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17--16--15--14--13 30
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36--35--34--33--32--31
Comments