A361670 - cp's OEIS frontend

A361670 Squarefree part of the n-th triangular number.

n	a(n)
1	1
2	3
3	6
4	10
5	15
6	21
7	7
8	1
9	5
10	55
11	66
12	78
13	91
14	105
15	30
16	34
17	17
18	19
19	190
20	210
21	231
22	253
23	69
24	3
25	13
26	39
27	42
28	406
29	435
30	465
31	31
32	33
33	561
34	595
35	70
36	74
37	703
38	741
39	195
40	205
41	861
42	903
43	946
44	110
45	115
46	1081
47	282
48	6
49	1
50	51
51	1326
52	1378
53	159
54	165
55	385
56	399
57	1653
58	1711
59	1770
60	1830
61	1891
62	217
63	14
64	130
65	2145
66	2211
67	2278

[1, 3, 6, 10, 15, 21, 7, 1, 5, 55, 66, 78, 91, 105, 30, 34, 17, 19, 190, 210, 231, 253, 69, 3, 13, 39, 42, 406, 435, 465, 31, 33, 561, 595, 70, 74, 703, 741, 195, 205, 861, 903, 946, 110, 115, 1081, 282, 6, 1, 51, 1326, 1378, 159, 165, 385, 399, 1653, 1711, 1770, 1830, 1891, 217, 14, 130, 2145, 2211, 2278]

cp's OEIS Frontend

A361670 Squarefree part of the n-th triangular number.

Table of values

List of values