A373446 - cp's OEIS frontend

A373446 Number of distinct ways of expressing n using only addition, multiplication (with all factors greater than 1), necessary parentheses, and the number 1.

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	3
7	3
8	6
9	7
10	10
11	10
12	18
13	19
14	27
15	30
16	50
17	53
18	80
19	85
20	133
21	146
22	209
23	223
24	350
25	382
26	544
27	597
28	886
29	962
30	1385
31	1507
32	2197
33	2426
34	3422
35	3740
36	5413
37	5941
38	8295
39	9159
40	12994
41	14298
42	19947
43	21982
44	30763
45	34111
46	47005
47	51895
48	72202
49	79974
50	109468
51	121545
52	167032
53	185276
54	252534
55	280427
56	382274
57	425703
58	575650
59	640243
60	867942

[1, 1, 1, 2, 2, 3, 3, 6, 7, 10, 10, 18, 19, 27, 30, 50, 53, 80, 85, 133, 146, 209, 223, 350, 382, 544, 597, 886, 962, 1385, 1507, 2197, 2426, 3422, 3740, 5413, 5941, 8295, 9159, 12994, 14298, 19947, 21982, 30763, 34111, 47005, 51895, 72202, 79974, 109468, 121545, 167032, 185276, 252534, 280427, 382274, 425703, 575650, 640243, 867942]

cp's OEIS Frontend

A373446 Number of distinct ways of expressing n using only addition, multiplication (with all factors greater than 1), necessary parentheses, and the number 1.

Table of values

List of values