A227135 - cp's OEIS frontend

A227135 Partitions with parts repeated at most twice and repetition only allowed if first part has an even index (first index = 1).

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	4
6	4
7	6
8	8
9	10
10	12
11	17
12	20
13	25
14	31
15	39
16	47
17	58
18	69
19	85
20	102
21	123
22	145
23	175
24	207
25	246
26	290
27	343
28	401
29	473
30	551
31	646
32	751
33	875
34	1012
35	1177
36	1358
37	1570
38	1807
39	2083
40	2389
41	2746
42	3140
43	3597
44	4106
45	4690
46	5337
47	6082
48	6907
49	7848
50	8895
51	10085
52	11404
53	12902
54	14561
55	16438
56	18520
57	20864
58	23460
59	26385
60	29619

[1, 1, 1, 2, 2, 4, 4, 6, 8, 10, 12, 17, 20, 25, 31, 39, 47, 58, 69, 85, 102, 123, 145, 175, 207, 246, 290, 343, 401, 473, 551, 646, 751, 875, 1012, 1177, 1358, 1570, 1807, 2083, 2389, 2746, 3140, 3597, 4106, 4690, 5337, 6082, 6907, 7848, 8895, 10085, 11404, 12902, 14561, 16438, 18520, 20864, 23460, 26385, 29619]

cp's OEIS Frontend

A227135 Partitions with parts repeated at most twice and repetition only allowed if first part has an even index (first index = 1).

Table of values

List of values