A263950 - cp's OEIS frontend

A263950 Array read by antidiagonals: T(n,k) is the number of lattices L in Z^k such that the quotient group Z^k / L is C_n.

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	4
9	7
10	1
11	1
12	6
13	13
14	15
15	1
16	1
17	6
18	28
19	40
20	31
21	1
22	1
23	12
24	31
25	120
26	121
27	63
28	1
29	1
30	8
31	91
32	156
33	496
34	364
35	127
36	1
37	1
38	12
39	57
40	600
41	781
42	2016
43	1093
44	255
45	1
46	1
47	12
48	112
49	400
50	3751
51	3906
52	8128
53	3280
54	511
55	1
56	1
57	18
58	117
59	960
60	2801
61	22932
62	19531
63	32640

[1, 1, 1, 1, 3, 1, 1, 4, 7, 1, 1, 6, 13, 15, 1, 1, 6, 28, 40, 31, 1, 1, 12, 31, 120, 121, 63, 1, 1, 8, 91, 156, 496, 364, 127, 1, 1, 12, 57, 600, 781, 2016, 1093, 255, 1, 1, 12, 112, 400, 3751, 3906, 8128, 3280, 511, 1, 1, 18, 117, 960, 2801, 22932, 19531, 32640]

cp's OEIS Frontend

A263950 Array read by antidiagonals: T(n,k) is the number of lattices L in Z^k such that the quotient group Z^k / L is C_n.

Table of values

List of values