

A307284


Coordinates X_upper(n) of Ppositions in Maharaja Nim on square spiral (see Comments for precise definition).


5



0, 2, 4, 7, 8, 11, 12, 14, 16, 18, 21, 24, 26, 28, 29, 31, 32, 34, 36, 38, 40, 42, 43, 45, 46, 48, 49, 51, 54, 55, 57, 60, 61, 63, 64, 66, 68, 71, 72, 74, 75, 77, 80, 81, 83, 86, 87, 89, 92, 93, 95, 97, 98, 100, 103, 104, 106, 108, 109
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OFFSET

0,2


COMMENTS

We study Maharaja Nim on the square spiral, as in A307282, A307283, and in particular the Ppositions in the 4th quadrant. As in A140100 and A140101 (which are the analogs if we use a Queen instead of a Maharaja) we take the Xaxis to point South and the Yaxis to point East.
The Ppositions now lie on two roughly straight lines, with coordinates (X_upper(n), Y_upper(n)) with X_upper(n) <= Y_upper(n), and (X_lower(n), Y_lower(n)) with X_lower(n) <= Y_lower(n). These four sequences are A307284A307287.
The two lines are the hardtosee black pixels in the fourth quadrant in the Sigrist illustration.


LINKS



CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



