A180230 - cp's OEIS frontend

A180230 a(n) is the minimal number of additions needed to grow to radius n, in the two-dimensional abelian sandpile growth model with h=2.

n	a(n)
0	2
1	6
2	10
3	22
4	26
5	50
6	66
7	78
8	122
9	142
10	154
11	194
12	254
13	270
14	342
15	386
16	418
17	490
18	518
19	578
20	654
21	698
22	766
23	914
24	942
25	1074
26	1150
27	1178
28	1310
29	1366
30	1410
31	1570
32	1646
33	1794
34	1894
35	2054
36	2130
37	2246
38	2406
39	2466
40	2654
41	2742
42	2894
43	3006
44	3138
45	3318
46	3582
47	3670
48	3826

[2, 6, 10, 22, 26, 50, 66, 78, 122, 142, 154, 194, 254, 270, 342, 386, 418, 490, 518, 578, 654, 698, 766, 914, 942, 1074, 1150, 1178, 1310, 1366, 1410, 1570, 1646, 1794, 1894, 2054, 2130, 2246, 2406, 2466, 2654, 2742, 2894, 3006, 3138, 3318, 3582, 3670, 3826]

cp's OEIS Frontend

A180230 a(n) is the minimal number of additions needed to grow to radius n, in the two-dimensional abelian sandpile growth model with h=2.

Table of values

List of values