A267654 - cp's OEIS frontend

A267654 Irregular triangle of palindromic subsequences. Every row has 2n+1 terms. From the second row, there are only two alternated numbers: 2n+4 and 2*n+2.

n	a(n)
0	2
1	4
2	2
3	4
4	6
5	4
6	6
7	4
8	6
9	8
10	6
11	8
12	6
13	8
14	6
15	8
16	10
17	8
18	10
19	8
20	10
21	8
22	10
23	8
24	10
25	12
26	10
27	12
28	10
29	12
30	10
31	12
32	10
33	12
34	10
35	12
36	14
37	12
38	14
39	12
40	14
41	12
42	14
43	12
44	14
45	12
46	14
47	12
48	14
49	16
50	14
51	16
52	14
53	16
54	14
55	16
56	14
57	16
58	14
59	16
60	14
61	16
62	14
63	16

[2, 4, 2, 4, 6, 4, 6, 4, 6, 8, 6, 8, 6, 8, 6, 8, 10, 8, 10, 8, 10, 8, 10, 8, 10, 12, 10, 12, 10, 12, 10, 12, 10, 12, 10, 12, 14, 12, 14, 12, 14, 12, 14, 12, 14, 12, 14, 12, 14, 16, 14, 16, 14, 16, 14, 16, 14, 16, 14, 16, 14, 16, 14, 16]

cp's OEIS Frontend

A267654 Irregular triangle of palindromic subsequences. Every row has 2n+1 terms. From the second row, there are only two alternated numbers: 2n+4 and 2*n+2.

Table of values

List of values

n	a(n)
0	2
1	4
2	2
3	4
4	6
5	4
6	6
7	4
8	6
9	8
10	6
11	8
12	6
13	8
14	6
15	8
16	10
17	8
18	10
19	8
20	10
21	8
22	10
23	8
24	10
25	12
26	10
27	12
28	10
29	12
30	10
31	12
32	10
33	12
34	10
35	12
36	14
37	12
38	14
39	12
40	14
41	12
42	14
43	12
44	14
45	12
46	14
47	12
48	14
49	16
50	14
51	16
52	14
53	16
54	14
55	16
56	14
57	16
58	14
59	16
60	14
61	16
62	14
63	16

n	a(n)
0	2
1	4
2	2
3	4
4	6
5	4
6	6
7	4
8	6
9	8
10	6
11	8
12	6
13	8
14	6
15	8
16	10
17	8
18	10
19	8
20	10
21	8
22	10
23	8
24	10
25	12
26	10
27	12
28	10
29	12
30	10
31	12
32	10
33	12
34	10
35	12
36	14
37	12
38	14
39	12
40	14
41	12
42	14
43	12
44	14
45	12
46	14
47	12
48	14
49	16
50	14
51	16
52	14
53	16
54	14
55	16
56	14
57	16
58	14
59	16
60	14
61	16
62	14
63	16

cp's OEIS Frontend

A267654 Irregular triangle of palindromic subsequences. Every row has 2*n+1 terms. From the second row, there are only two alternated numbers: 2*n+4 and 2*n+2.

Table of values

List of values

A267654 Irregular triangle of palindromic subsequences. Every row has 2n+1 terms. From the second row, there are only two alternated numbers: 2n+4 and 2*n+2.

n	a(n)
0	2
1	4
2	2
3	4
4	6
5	4
6	6
7	4
8	6
9	8
10	6
11	8
12	6
13	8
14	6
15	8
16	10
17	8
18	10
19	8
20	10
21	8
22	10
23	8
24	10
25	12
26	10
27	12
28	10
29	12
30	10
31	12
32	10
33	12
34	10
35	12
36	14
37	12
38	14
39	12
40	14
41	12
42	14
43	12
44	14
45	12
46	14
47	12
48	14
49	16
50	14
51	16
52	14
53	16
54	14
55	16
56	14
57	16
58	14
59	16
60	14
61	16
62	14
63	16