A355774 - cp's OEIS frontend

A355774 An extension of the generalized pentagonal numbers such that every positive integer can be represented as the sum of at most two terms of the sequence.

n	a(n)
0	0
1	1
2	2
3	5
4	7
5	11
6	12
7	15
8	21
9	22
10	25
11	26
12	35
13	39
14	40
15	49
16	51
17	57
18	67
19	70
20	77
21	87
22	92
23	100
24	117
25	120
26	123
27	126
28	145
29	153
30	155
31	173
32	176
33	182
34	186
35	187
36	205
37	210
38	214
39	222
40	228
41	241
42	247
43	251
44	260
45	283
46	287
47	301
48	319
49	330
50	345
51	376
52	382
53	392
54	425
55	435
56	442
57	448

[0, 1, 2, 5, 7, 11, 12, 15, 21, 22, 25, 26, 35, 39, 40, 49, 51, 57, 67, 70, 77, 87, 92, 100, 117, 120, 123, 126, 145, 153, 155, 173, 176, 182, 186, 187, 205, 210, 214, 222, 228, 241, 247, 251, 260, 283, 287, 301, 319, 330, 345, 376, 382, 392, 425, 435, 442, 448]

cp's OEIS Frontend

A355774 An extension of the generalized pentagonal numbers such that every positive integer can be represented as the sum of at most two terms of the sequence.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	5
4	7
5	11
6	12
7	15
8	21
9	22
10	25
11	26
12	35
13	39
14	40
15	49
16	51
17	57
18	67
19	70
20	77
21	87
22	92
23	100
24	117
25	120
26	123
27	126
28	145
29	153
30	155
31	173
32	176
33	182
34	186
35	187
36	205
37	210
38	214
39	222
40	228
41	241
42	247
43	251
44	260
45	283
46	287
47	301
48	319
49	330
50	345
51	376
52	382
53	392
54	425
55	435
56	442
57	448

n	a(n)
0	0
1	1
2	2
3	5
4	7
5	11
6	12
7	15
8	21
9	22
10	25
11	26
12	35
13	39
14	40
15	49
16	51
17	57
18	67
19	70
20	77
21	87
22	92
23	100
24	117
25	120
26	123
27	126
28	145
29	153
30	155
31	173
32	176
33	182
34	186
35	187
36	205
37	210
38	214
39	222
40	228
41	241
42	247
43	251
44	260
45	283
46	287
47	301
48	319
49	330
50	345
51	376
52	382
53	392
54	425
55	435
56	442
57	448

n	a(n)
0	0
1	1
2	2
3	5
4	7
5	11
6	12
7	15
8	21
9	22
10	25
11	26
12	35
13	39
14	40
15	49
16	51
17	57
18	67
19	70
20	77
21	87
22	92
23	100
24	117
25	120
26	123
27	126
28	145
29	153
30	155
31	173
32	176
33	182
34	186
35	187
36	205
37	210
38	214
39	222
40	228
41	241
42	247
43	251
44	260
45	283
46	287
47	301
48	319
49	330
50	345
51	376
52	382
53	392
54	425
55	435
56	442
57	448