A300812 - cp's OEIS frontend

A300812 Irregular triangle T(n,c) read by rows: the number of clusters of n spheres centered on f.c.c. lattice sites with c contacts.

n	a(n)
1	1
2	0
3	1
4	0
5	0
6	3
7	1
8	0
9	0
10	0
11	13
12	4
13	2
14	1
15	0
16	0
17	0
18	0
19	75
20	35
21	16
22	3
23	2
24	0
25	0
26	0
27	0
28	0
29	557
30	384
31	184
32	54
33	24
34	5
35	2
36	1
37	0
38	0
39	0
40	0
41	0
42	0
43	4808
44	4230
45	2354
46	834
47	355
48	104
49	37
50	9
51	2
52	1
53	0
54	0
55	0
56	0
57	0
58	0
59	0
60	44334
61	47328
62	30517
63	13081
64	5716
65	2083
66	749
67	253
68	70
69	20
70	4
71	3

[1, 0, 1, 0, 0, 3, 1, 0, 0, 0, 13, 4, 2, 1, 0, 0, 0, 0, 75, 35, 16, 3, 2, 0, 0, 0, 0, 0, 557, 384, 184, 54, 24, 5, 2, 1, 0, 0, 0, 0, 0, 0, 4808, 4230, 2354, 834, 355, 104, 37, 9, 2, 1, 0, 0, 0, 0, 0, 0, 0, 44334, 47328, 30517, 13081, 5716, 2083, 749, 253, 70, 20, 4, 3]

cp's OEIS Frontend

A300812 Irregular triangle T(n,c) read by rows: the number of clusters of n spheres centered on f.c.c. lattice sites with c contacts.

Table of values

List of values