A143971 - cp's OEIS frontend

A143971 Triangle read by rows, (3n-2) subsequences decrescendo.

n	a(n)
1	1
2	4
3	1
4	7
5	4
6	1
7	10
8	7
9	4
10	1
11	13
12	10
13	7
14	4
15	1
16	16
17	13
18	10
19	7
20	4
21	1
22	19
23	16
24	13
25	10
26	7
27	4
28	1
29	22
30	19
31	16
32	13
33	10
34	7
35	4
36	1
37	25
38	22
39	19
40	16
41	13
42	10
43	7
44	4
45	1
46	28
47	25
48	22
49	19
50	16
51	13
52	10
53	7
54	4
55	1
56	31
57	28
58	25
59	22
60	19
61	16
62	13
63	10
64	7
65	4
66	1

[1, 4, 1, 7, 4, 1, 10, 7, 4, 1, 13, 10, 7, 4, 1, 16, 13, 10, 7, 4, 1, 19, 16, 13, 10, 7, 4, 1, 22, 19, 16, 13, 10, 7, 4, 1, 25, 22, 19, 16, 13, 10, 7, 4, 1, 28, 25, 22, 19, 16, 13, 10, 7, 4, 1, 31, 28, 25, 22, 19, 16, 13, 10, 7, 4, 1]

cp's OEIS Frontend

A143971 Triangle read by rows, (3n-2) subsequences decrescendo.

Table of values

List of values

n	a(n)
1	1
2	4
3	1
4	7
5	4
6	1
7	10
8	7
9	4
10	1
11	13
12	10
13	7
14	4
15	1
16	16
17	13
18	10
19	7
20	4
21	1
22	19
23	16
24	13
25	10
26	7
27	4
28	1
29	22
30	19
31	16
32	13
33	10
34	7
35	4
36	1
37	25
38	22
39	19
40	16
41	13
42	10
43	7
44	4
45	1
46	28
47	25
48	22
49	19
50	16
51	13
52	10
53	7
54	4
55	1
56	31
57	28
58	25
59	22
60	19
61	16
62	13
63	10
64	7
65	4
66	1

n	a(n)
1	1
2	4
3	1
4	7
5	4
6	1
7	10
8	7
9	4
10	1
11	13
12	10
13	7
14	4
15	1
16	16
17	13
18	10
19	7
20	4
21	1
22	19
23	16
24	13
25	10
26	7
27	4
28	1
29	22
30	19
31	16
32	13
33	10
34	7
35	4
36	1
37	25
38	22
39	19
40	16
41	13
42	10
43	7
44	4
45	1
46	28
47	25
48	22
49	19
50	16
51	13
52	10
53	7
54	4
55	1
56	31
57	28
58	25
59	22
60	19
61	16
62	13
63	10
64	7
65	4
66	1

n	a(n)
1	1
2	4
3	1
4	7
5	4
6	1
7	10
8	7
9	4
10	1
11	13
12	10
13	7
14	4
15	1
16	16
17	13
18	10
19	7
20	4
21	1
22	19
23	16
24	13
25	10
26	7
27	4
28	1
29	22
30	19
31	16
32	13
33	10
34	7
35	4
36	1
37	25
38	22
39	19
40	16
41	13
42	10
43	7
44	4
45	1
46	28
47	25
48	22
49	19
50	16
51	13
52	10
53	7
54	4
55	1
56	31
57	28
58	25
59	22
60	19
61	16
62	13
63	10
64	7
65	4
66	1