A261993 - cp's OEIS frontend

A261993 Number of distinct fractional parts of the numbers 1/(prime(j)-1)+...+1/(prime(k)-1) with 1 <= j <= k <= n, where the fractional part of x is given by x - floor(x).

n	a(n)
1	1
2	2
3	4
4	7
5	11
6	15
7	21
8	28
9	36
10	45
11	55
12	66
13	78
14	91
15	105
16	120
17	136
18	151
19	169
20	188
21	208
22	229
23	251
24	274
25	298
26	323
27	349
28	376
29	404
30	433
31	463
32	494
33	526
34	559
35	593
36	628
37	664
38	701
39	739
40	778
41	818
42	859
43	901
44	944
45	988
46	1033
47	1079
48	1126
49	1174
50	1223
51	1273
52	1324
53	1376
54	1429
55	1483
56	1538
57	1594
58	1651
59	1709
60	1768

[1, 2, 4, 7, 11, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 151, 169, 188, 208, 229, 251, 274, 298, 323, 349, 376, 404, 433, 463, 494, 526, 559, 593, 628, 664, 701, 739, 778, 818, 859, 901, 944, 988, 1033, 1079, 1126, 1174, 1223, 1273, 1324, 1376, 1429, 1483, 1538, 1594, 1651, 1709, 1768]

cp's OEIS Frontend

A261993 Number of distinct fractional parts of the numbers 1/(prime(j)-1)+...+1/(prime(k)-1) with 1 <= j <= k <= n, where the fractional part of x is given by x - floor(x).

Table of values

List of values