A355552 - cp's OEIS frontend

A355552 Number of ways to select 3 or more collinear points from a 4 X n grid.

n	a(n)
1	5
2	10
3	23
4	54
5	117
6	240
7	497
8	1006
9	2027
10	4074
11	8169
12	16356
13	32741
14	65506
15	131039
16	262110
17	524253
18	1048536
19	2097113
20	4194262
21	8388563
22	16777170
23	33554385
24	67108812
25	134217677
26	268435402
27	536870855
28	1073741766
29	2147483589
30	4294967232
31	8589934529
32	17179869118
33	34359738299

[5, 10, 23, 54, 117, 240, 497, 1006, 2027, 4074, 8169, 16356, 32741, 65506, 131039, 262110, 524253, 1048536, 2097113, 4194262, 8388563, 16777170, 33554385, 67108812, 134217677, 268435402, 536870855, 1073741766, 2147483589, 4294967232, 8589934529, 17179869118, 34359738299]

cp's OEIS Frontend

A355552 Number of ways to select 3 or more collinear points from a 4 X n grid.

Table of values

List of values