A331449 - cp's OEIS frontend

A331449 a(0) = 1 by convention; for n>0, a(n) is the number of points in the n-th figure shown in A255011 (meaning the figure with 4n points on the perimeter).

n	a(n)
0	1
1	5
2	37
3	257
4	817
5	2757
6	4825
7	12293
8	19241
9	33549
10	49577
11	87685
12	101981
13	178465
14	220113
15	286357
16	379097
17	551669
18	606241
19	880293
20	951445
21	1209049
22	1507521
23	1947877
24	2002669
25	2624409
26	3056093
27	3550425
28	3955049
29	5069037
30	5062153
31	6669665
32	7081969
33	8143193
34	9365089
35	10296469

[1, 5, 37, 257, 817, 2757, 4825, 12293, 19241, 33549, 49577, 87685, 101981, 178465, 220113, 286357, 379097, 551669, 606241, 880293, 951445, 1209049, 1507521, 1947877, 2002669, 2624409, 3056093, 3550425, 3955049, 5069037, 5062153, 6669665, 7081969, 8143193, 9365089, 10296469]

cp's OEIS Frontend

A331449 a(0) = 1 by convention; for n>0, a(n) is the number of points in the n-th figure shown in A255011 (meaning the figure with 4n points on the perimeter).

Table of values

List of values