A220522 - cp's OEIS frontend

A220522 Number of toothpicks and D-toothpicks after n-th stage in the D-toothpick "narrow" triangle of the third 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	62
13	70
14	78
15	91
16	107
17	111
18	115
19	123
20	135
21	151
22	167
23	187
24	211
25	223
26	231
27	247
28	275
29	291
30	307
31	332
32	364
33	368
34	372
35	380
36	392
37	408
38	424
39	446
40	478
41	504
42	524
43	548
44	588
45	620
46	660
47	701
48	749
49	769
50	777

[0, 1, 3, 7, 11, 15, 19, 26, 34, 38, 42, 50, 62, 70, 78, 91, 107, 111, 115, 123, 135, 151, 167, 187, 211, 223, 231, 247, 275, 291, 307, 332, 364, 368, 372, 380, 392, 408, 424, 446, 478, 504, 524, 548, 588, 620, 660, 701, 749, 769, 777]

cp's OEIS Frontend

A220522 Number of toothpicks and D-toothpicks after n-th stage in the D-toothpick "narrow" triangle of the third 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	62
13	70
14	78
15	91
16	107
17	111
18	115
19	123
20	135
21	151
22	167
23	187
24	211
25	223
26	231
27	247
28	275
29	291
30	307
31	332
32	364
33	368
34	372
35	380
36	392
37	408
38	424
39	446
40	478
41	504
42	524
43	548
44	588
45	620
46	660
47	701
48	749
49	769
50	777

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	62
13	70
14	78
15	91
16	107
17	111
18	115
19	123
20	135
21	151
22	167
23	187
24	211
25	223
26	231
27	247
28	275
29	291
30	307
31	332
32	364
33	368
34	372
35	380
36	392
37	408
38	424
39	446
40	478
41	504
42	524
43	548
44	588
45	620
46	660
47	701
48	749
49	769
50	777

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	62
13	70
14	78
15	91
16	107
17	111
18	115
19	123
20	135
21	151
22	167
23	187
24	211
25	223
26	231
27	247
28	275
29	291
30	307
31	332
32	364
33	368
34	372
35	380
36	392
37	408
38	424
39	446
40	478
41	504
42	524
43	548
44	588
45	620
46	660
47	701
48	749
49	769
50	777