A360683 - cp's OEIS frontend

A360683 Number of integer partitions of n whose second differences sum to 0, meaning either there is only one part, or the first two parts have the same difference as the last two parts.

n	a(n)
0	1
1	1
2	2
3	3
4	4
5	4
6	8
7	6
8	11
9	12
10	17
11	14
12	32
13	23
14	40
15	44
16	64
17	59
18	104
19	93
20	149
21	157
22	218
23	227
24	342
25	349
26	481
27	538
28	713
29	777
30	1052
31	1145
32	1494
33	1692
34	2130
35	2416
36	3064
37	3449
38	4286
39	4918
40	6028
41	6882
42	8424
43	9620
44	11634
45	13396
46	16022
47	18416
48	22019
49	25248
50	29954

[1, 1, 2, 3, 4, 4, 8, 6, 11, 12, 17, 14, 32, 23, 40, 44, 64, 59, 104, 93, 149, 157, 218, 227, 342, 349, 481, 538, 713, 777, 1052, 1145, 1494, 1692, 2130, 2416, 3064, 3449, 4286, 4918, 6028, 6882, 8424, 9620, 11634, 13396, 16022, 18416, 22019, 25248, 29954]

cp's OEIS Frontend

A360683 Number of integer partitions of n whose second differences sum to 0, meaning either there is only one part, or the first two parts have the same difference as the last two parts.

Table of values

List of values