A220496 - cp's OEIS frontend

A220496 Number of toothpicks and D-toothpicks after n-th stage in the structure of the D-toothpick "narrow" triangle of the first kind.

n	a(n)
0	0
1	1
2	3
3	7
4	11
5	15
6	19
7	26
8	34
9	38
10	42
11	50
12	58
13	66
14	74
15	87
16	103
17	107
18	111
19	119
20	127
21	135
22	143
23	157
24	173
25	181
26	189
27	205
28	221
29	237
30	253
31	278
32	310
33	314
34	318
35	326
36	334
37	342
38	350
39	364
40	380
41	388
42	396
43	412
44	428
45	444
46	460
47	486
48	518
49	526
50	534
51	550
52	566
53	582

[0, 1, 3, 7, 11, 15, 19, 26, 34, 38, 42, 50, 58, 66, 74, 87, 103, 107, 111, 119, 127, 135, 143, 157, 173, 181, 189, 205, 221, 237, 253, 278, 310, 314, 318, 326, 334, 342, 350, 364, 380, 388, 396, 412, 428, 444, 460, 486, 518, 526, 534, 550, 566, 582]

cp's OEIS Frontend

A220496 Number of toothpicks and D-toothpicks after n-th stage in the structure of the D-toothpick "narrow" triangle of the first kind.

Table of values

List of values

n	a(n)
0	0
1	1
2	3
3	7
4	11
5	15
6	19
7	26
8	34
9	38
10	42
11	50
12	58
13	66
14	74
15	87
16	103
17	107
18	111
19	119
20	127
21	135
22	143
23	157
24	173
25	181
26	189
27	205
28	221
29	237
30	253
31	278
32	310
33	314
34	318
35	326
36	334
37	342
38	350
39	364
40	380
41	388
42	396
43	412
44	428
45	444
46	460
47	486
48	518
49	526
50	534
51	550
52	566
53	582

n	a(n)
0	0
1	1
2	3
3	7
4	11
5	15
6	19
7	26
8	34
9	38
10	42
11	50
12	58
13	66
14	74
15	87
16	103
17	107
18	111
19	119
20	127
21	135
22	143
23	157
24	173
25	181
26	189
27	205
28	221
29	237
30	253
31	278
32	310
33	314
34	318
35	326
36	334
37	342
38	350
39	364
40	380
41	388
42	396
43	412
44	428
45	444
46	460
47	486
48	518
49	526
50	534
51	550
52	566
53	582

n	a(n)
0	0
1	1
2	3
3	7
4	11
5	15
6	19
7	26
8	34
9	38
10	42
11	50
12	58
13	66
14	74
15	87
16	103
17	107
18	111
19	119
20	127
21	135
22	143
23	157
24	173
25	181
26	189
27	205
28	221
29	237
30	253
31	278
32	310
33	314
34	318
35	326
36	334
37	342
38	350
39	364
40	380
41	388
42	396
43	412
44	428
45	444
46	460
47	486
48	518
49	526
50	534
51	550
52	566
53	582