A100143 - cp's OEIS frontend

A100143 Unique sequence with a(1)=1 where each a(n) occurs in the same order a(n) times consecutively in its sequence of first differences which contains no other terms.

n	a(n)
1	1
2	2
3	4
4	6
5	10
6	14
7	18
8	22
9	28
10	34
11	40
12	46
13	52
14	58
15	68
16	78
17	88
18	98
19	108
20	118
21	128
22	138
23	148
24	158
25	172
26	186
27	200
28	214
29	228
30	242
31	256
32	270
33	284
34	298
35	312
36	326
37	340
38	354
39	372
40	390
41	408
42	426
43	444
44	462
45	480
46	498
47	516
48	534
49	552
50	570
51	588
52	606
53	624
54	642
55	660
56	678
57	700

[1, 2, 4, 6, 10, 14, 18, 22, 28, 34, 40, 46, 52, 58, 68, 78, 88, 98, 108, 118, 128, 138, 148, 158, 172, 186, 200, 214, 228, 242, 256, 270, 284, 298, 312, 326, 340, 354, 372, 390, 408, 426, 444, 462, 480, 498, 516, 534, 552, 570, 588, 606, 624, 642, 660, 678, 700]

cp's OEIS Frontend

A100143 Unique sequence with a(1)=1 where each a(n) occurs in the same order a(n) times consecutively in its sequence of first differences which contains no other terms.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	6
5	10
6	14
7	18
8	22
9	28
10	34
11	40
12	46
13	52
14	58
15	68
16	78
17	88
18	98
19	108
20	118
21	128
22	138
23	148
24	158
25	172
26	186
27	200
28	214
29	228
30	242
31	256
32	270
33	284
34	298
35	312
36	326
37	340
38	354
39	372
40	390
41	408
42	426
43	444
44	462
45	480
46	498
47	516
48	534
49	552
50	570
51	588
52	606
53	624
54	642
55	660
56	678
57	700

n	a(n)
1	1
2	2
3	4
4	6
5	10
6	14
7	18
8	22
9	28
10	34
11	40
12	46
13	52
14	58
15	68
16	78
17	88
18	98
19	108
20	118
21	128
22	138
23	148
24	158
25	172
26	186
27	200
28	214
29	228
30	242
31	256
32	270
33	284
34	298
35	312
36	326
37	340
38	354
39	372
40	390
41	408
42	426
43	444
44	462
45	480
46	498
47	516
48	534
49	552
50	570
51	588
52	606
53	624
54	642
55	660
56	678
57	700

n	a(n)
1	1
2	2
3	4
4	6
5	10
6	14
7	18
8	22
9	28
10	34
11	40
12	46
13	52
14	58
15	68
16	78
17	88
18	98
19	108
20	118
21	128
22	138
23	148
24	158
25	172
26	186
27	200
28	214
29	228
30	242
31	256
32	270
33	284
34	298
35	312
36	326
37	340
38	354
39	372
40	390
41	408
42	426
43	444
44	462
45	480
46	498
47	516
48	534
49	552
50	570
51	588
52	606
53	624
54	642
55	660
56	678
57	700