A215369 - cp's OEIS frontend

A215369 Numbers n with the same f-value as n+1, where f(n) = A056239(n) = Sum_{i} i*e_i for n = Product_{i} prime(i)^e_i.

n	a(n)
1	3
2	5
3	9
4	14
5	21
6	27
7	44
8	77
9	98
10	104
11	115
12	125
13	152
14	247
15	289
16	363
17	423
18	455
19	492
20	624
21	670
22	714
23	860
24	1016
25	1044
26	1224
27	1274
28	1449
29	1659
30	1715
31	1817
32	1862
33	2013
34	2255
35	2261
36	2424
37	2596
38	2679
39	2847
40	3255
41	3285
42	3362
43	3477
44	3478
45	3626
46	3925
47	4185
48	4233
49	4292

[3, 5, 9, 14, 21, 27, 44, 77, 98, 104, 115, 125, 152, 247, 289, 363, 423, 455, 492, 624, 670, 714, 860, 1016, 1044, 1224, 1274, 1449, 1659, 1715, 1817, 1862, 2013, 2255, 2261, 2424, 2596, 2679, 2847, 3255, 3285, 3362, 3477, 3478, 3626, 3925, 4185, 4233, 4292]

cp's OEIS Frontend

A215369 Numbers n with the same f-value as n+1, where f(n) = A056239(n) = Sum_{i} i*e_i for n = Product_{i} prime(i)^e_i.

Table of values

List of values