A079447 - cp's OEIS frontend

A079447 Primes p such that there is an integer k satisfying p = floor(k*H(k)) where H(k) denotes the k-th harmonic number (i.e., H(k) = 1 + 1/2 + 1/3 + ... + 1/k).

n	a(n)
1	3
2	5
3	11
4	29
5	37
6	41
7	67
8	71
9	109
10	181
11	197
12	241
13	263
14	269
15	349
16	367
17	373
18	379
19	397
20	409
21	421
22	433
23	439
24	457
25	463
26	487
27	587
28	593
29	599
30	631
31	701
32	727
33	773
34	911
35	971
36	991
37	1039
38	1093
39	1223
40	1237
41	1279
42	1307
43	1321
44	1433
45	1447
46	1489
47	1553
48	1567
49	1667
50	1747
51	1783

[3, 5, 11, 29, 37, 41, 67, 71, 109, 181, 197, 241, 263, 269, 349, 367, 373, 379, 397, 409, 421, 433, 439, 457, 463, 487, 587, 593, 599, 631, 701, 727, 773, 911, 971, 991, 1039, 1093, 1223, 1237, 1279, 1307, 1321, 1433, 1447, 1489, 1553, 1567, 1667, 1747, 1783]

cp's OEIS Frontend

A079447 Primes p such that there is an integer k satisfying p = floor(k*H(k)) where H(k) denotes the k-th harmonic number (i.e., H(k) = 1 + 1/2 + 1/3 + ... + 1/k).

Table of values

List of values