A378761 - cp's OEIS frontend

A378761 Irregular triangle read by rows: T(n,k) for k <= n/2 is the number of partitions of the repunit A002275(n) into k nonzero complementary binary vectors having a common divisor > 1 in base 10.

n	a(n)
2	1
3	1
4	1
5	3
6	1
7	0
8	1
9	19
10	6
11	1
12	0
13	0
14	1
15	47
16	98
17	29
18	1
19	84
20	280
21	0
22	1
23	141
24	650
25	600
26	120
27	1
28	0
29	0
30	0
31	0
32	1
33	1135
34	16734
35	28063
36	5922
37	756
38	1
39	130
40	130
41	13
42	0
43	0
44	1
45	1779
46	43757
47	161700
48	161700
49	52920
50	5040
51	1
52	6183
53	263386
54	1401900
55	1401400
56	0
57	0
58	1
59	9919
60	438582
61	2634549
62	4381246
63	2587326
64	577612
65	40913
66	1
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	1
75	75433

[1, 1, 1, 3, 1, 0, 1, 19, 6, 1, 0, 0, 1, 47, 98, 29, 1, 84, 280, 0, 1, 141, 650, 600, 120, 1, 0, 0, 0, 0, 1, 1135, 16734, 28063, 5922, 756, 1, 130, 130, 13, 0, 0, 1, 1779, 43757, 161700, 161700, 52920, 5040, 1, 6183, 263386, 1401900, 1401400, 0, 0, 1, 9919, 438582, 2634549, 4381246, 2587326, 577612, 40913, 1, 0, 0, 0, 0, 0, 0, 0, 1, 75433]

cp's OEIS Frontend

A378761 Irregular triangle read by rows: T(n,k) for k <= n/2 is the number of partitions of the repunit A002275(n) into k nonzero complementary binary vectors having a common divisor > 1 in base 10.

Table of values

List of values