A293366 - cp's OEIS frontend

A293366 Number of partitions of n where each part i is marked with a word of length i over a binary alphabet whose letters appear in alphabetical order and both letters occur at least once in the partition.

n	a(n)
2	3
3	12
4	40
5	104
6	279
7	654
8	1577
9	3560
10	8109
11	17734
12	39205
13	83996
14	181043
15	382856
16	811084
17	1694468
18	3545864
19	7340308
20	15205768
21	31259422
22	64253260
23	131314502
24	268332975
25	545854344
26	1110087515
27	2250051262
28	4558868119
29	9213241988
30	18613362500
31	37529700206

[3, 12, 40, 104, 279, 654, 1577, 3560, 8109, 17734, 39205, 83996, 181043, 382856, 811084, 1694468, 3545864, 7340308, 15205768, 31259422, 64253260, 131314502, 268332975, 545854344, 1110087515, 2250051262, 4558868119, 9213241988, 18613362500, 37529700206]

cp's OEIS Frontend

A293366 Number of partitions of n where each part i is marked with a word of length i over a binary alphabet whose letters appear in alphabetical order and both letters occur at least once in the partition.

Table of values

List of values