A253895 - cp's OEIS frontend

A253895 Total number of octagons in two variants of an octagon expansion after n iterations: either "side-to-side" or "vertex-to-vertex", respectively.

n	a(n)
1	1
2	3
3	7
4	14
5	25
6	41
7	63
8	90
9	120
10	154
11	192
12	233
13	278
14	328
15	382
16	439
17	500
18	566
19	636
20	709
21	786
22	868
23	954
24	1043
25	1136
26	1234
27	1336
28	1441
29	1550
30	1664
31	1782
32	1903
33	2028
34	2158
35	2292
36	2429
37	2570
38	2716
39	2866
40	3019
41	3176
42	3338
43	3504
44	3673
45	3846
46	4024
47	4206
48	4391
49	4580
50	4774
51	4972

[1, 3, 7, 14, 25, 41, 63, 90, 120, 154, 192, 233, 278, 328, 382, 439, 500, 566, 636, 709, 786, 868, 954, 1043, 1136, 1234, 1336, 1441, 1550, 1664, 1782, 1903, 2028, 2158, 2292, 2429, 2570, 2716, 2866, 3019, 3176, 3338, 3504, 3673, 3846, 4024, 4206, 4391, 4580, 4774, 4972]

cp's OEIS Frontend

A253895 Total number of octagons in two variants of an octagon expansion after n iterations: either "side-to-side" or "vertex-to-vertex", respectively.

Table of values

List of values