A127752 - cp's OEIS frontend

A127752 Row sums of inverse of number triangle A(n,k) = 1/(3n+1) if k <= n <= 2k, 0 otherwise.

n	a(n)
0	1
1	4
2	3
3	7
4	3
5	6
6	3
7	10
8	3
9	6
10	3
11	9
12	3
13	6
14	3
15	13
16	3
17	6
18	3
19	9
20	3
21	6
22	3
23	12
24	3
25	6
26	3
27	9
28	3
29	6
30	3
31	16
32	3
33	6
34	3
35	9
36	3
37	6
38	3
39	12
40	3
41	6
42	3
43	9
44	3
45	6
46	3
47	15
48	3
49	6
50	3
51	9
52	3
53	6
54	3
55	12
56	3
57	6
58	3
59	9
60	3
61	6
62	3
63	19
64	3
65	6
66	3
67	9
68	3
69	6
70	3
71	12
72	3
73	6
74	3
75	9
76	3
77	6
78	3
79	15
80	3
81	6
82	3
83	9
84	3
85	6
86	3
87	12
88	3
89	6
90	3
91	9
92	3
93	6
94	3
95	18
96	3
97	6
98	3
99	9
100	3
101	6
102	3
103	12
104	3
105	6

[1, 4, 3, 7, 3, 6, 3, 10, 3, 6, 3, 9, 3, 6, 3, 13, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 16, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 15, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 19, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 15, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 18, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6]

cp's OEIS Frontend

A127752 Row sums of inverse of number triangle A(n,k) = 1/(3n+1) if k <= n <= 2k, 0 otherwise.

Table of values

List of values

n	a(n)
0	1
1	4
2	3
3	7
4	3
5	6
6	3
7	10
8	3
9	6
10	3
11	9
12	3
13	6
14	3
15	13
16	3
17	6
18	3
19	9
20	3
21	6
22	3
23	12
24	3
25	6
26	3
27	9
28	3
29	6
30	3
31	16
32	3
33	6
34	3
35	9
36	3
37	6
38	3
39	12
40	3
41	6
42	3
43	9
44	3
45	6
46	3
47	15
48	3
49	6
50	3
51	9
52	3
53	6
54	3
55	12
56	3
57	6
58	3
59	9
60	3
61	6
62	3
63	19
64	3
65	6
66	3
67	9
68	3
69	6
70	3
71	12
72	3
73	6
74	3
75	9
76	3
77	6
78	3
79	15
80	3
81	6
82	3
83	9
84	3
85	6
86	3
87	12
88	3
89	6
90	3
91	9
92	3
93	6
94	3
95	18
96	3
97	6
98	3
99	9
100	3
101	6
102	3
103	12
104	3
105	6

n	a(n)
0	1
1	4
2	3
3	7
4	3
5	6
6	3
7	10
8	3
9	6
10	3
11	9
12	3
13	6
14	3
15	13
16	3
17	6
18	3
19	9
20	3
21	6
22	3
23	12
24	3
25	6
26	3
27	9
28	3
29	6
30	3
31	16
32	3
33	6
34	3
35	9
36	3
37	6
38	3
39	12
40	3
41	6
42	3
43	9
44	3
45	6
46	3
47	15
48	3
49	6
50	3
51	9
52	3
53	6
54	3
55	12
56	3
57	6
58	3
59	9
60	3
61	6
62	3
63	19
64	3
65	6
66	3
67	9
68	3
69	6
70	3
71	12
72	3
73	6
74	3
75	9
76	3
77	6
78	3
79	15
80	3
81	6
82	3
83	9
84	3
85	6
86	3
87	12
88	3
89	6
90	3
91	9
92	3
93	6
94	3
95	18
96	3
97	6
98	3
99	9
100	3
101	6
102	3
103	12
104	3
105	6

n	a(n)
0	1
1	4
2	3
3	7
4	3
5	6
6	3
7	10
8	3
9	6
10	3
11	9
12	3
13	6
14	3
15	13
16	3
17	6
18	3
19	9
20	3
21	6
22	3
23	12
24	3
25	6
26	3
27	9
28	3
29	6
30	3
31	16
32	3
33	6
34	3
35	9
36	3
37	6
38	3
39	12
40	3
41	6
42	3
43	9
44	3
45	6
46	3
47	15
48	3
49	6
50	3
51	9
52	3
53	6
54	3
55	12
56	3
57	6
58	3
59	9
60	3
61	6
62	3
63	19
64	3
65	6
66	3
67	9
68	3
69	6
70	3
71	12
72	3
73	6
74	3
75	9
76	3
77	6
78	3
79	15
80	3
81	6
82	3
83	9
84	3
85	6
86	3
87	12
88	3
89	6
90	3
91	9
92	3
93	6
94	3
95	18
96	3
97	6
98	3
99	9
100	3
101	6
102	3
103	12
104	3
105	6