Sequence for points that spiral around a point (R.Graha idea connected to my Queens Puzzle Work).

[Mario VELUCCHI]

Dear Seqfans frinds,
I am looking for references about this sequence:
"The number of lines generated by n points that spiral around a fixed
point an a hexagonal lattice"
(R.Graham idea connected to my Queens Puzzle Work, source: M.Gardner
article based on My and Graham works, to appear!).

n
0  0
1  3
2  5
3  6
4  7
5  8
6  9
7  9
8  10
9  11
10 11
.........



==
Best, Mario Velucchi
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