A139039 - cp's OEIS frontend

A139039 A triangular central symmetric sequence based on the sequence A003269: if m <= floor(n/2), t(n,m) = A003269(m+2), otherwise t(n,m) = A003269(n - (m+2)).

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

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 2, 3, 2, 1, 1, 1, 1, 1, 1, 2, 3, 3, 2, 1, 1, 1, 1, 1, 1, 2, 3, 4, 3, 2, 1, 1, 1]

cp's OEIS Frontend

A139039 A triangular central symmetric sequence based on the sequence A003269: if m <= floor(n/2), t(n,m) = A003269(m+2), otherwise t(n,m) = A003269(n - (m+2)).

Table of values

List of values

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

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

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