A220523 - cp's OEIS frontend

A220523 Number of toothpicks or D-toothpicks added at n-th stage in the structure of the D-toothpick "narrow" triangle of A220522.

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

[0, 1, 2, 4, 4, 4, 4, 7, 8, 4, 4, 8, 12, 8, 8, 13, 16, 4, 4, 8, 12, 16, 16, 20, 24, 12, 8, 16, 28, 16, 16, 25, 32, 4, 4, 8, 12, 16, 16, 22, 32, 26, 20, 24, 40, 32, 40, 41, 48, 20, 8]

cp's OEIS Frontend

A220523 Number of toothpicks or D-toothpicks added at n-th stage in the structure of the D-toothpick "narrow" triangle of A220522.

Table of values

List of values

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

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

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