A340387 - cp's OEIS frontend

A340387 Numbers whose sum of prime indices is twice their number, counted with multiplicity in both cases.

n	a(n)
1	1
2	3
3	9
4	10
5	27
6	28
7	30
8	81
9	84
10	88
11	90
12	100
13	208
14	243
15	252
16	264
17	270
18	280
19	300
20	544
21	624
22	729
23	756
24	784
25	792
26	810
27	840
28	880
29	900
30	1000
31	1216
32	1632
33	1872
34	2080
35	2187
36	2268
37	2352
38	2376
39	2430
40	2464
41	2520
42	2640
43	2700
44	2800
45	2944
46	3000
47	3648
48	4896
49	5440
50	5616

[1, 3, 9, 10, 27, 28, 30, 81, 84, 88, 90, 100, 208, 243, 252, 264, 270, 280, 300, 544, 624, 729, 756, 784, 792, 810, 840, 880, 900, 1000, 1216, 1632, 1872, 2080, 2187, 2268, 2352, 2376, 2430, 2464, 2520, 2640, 2700, 2800, 2944, 3000, 3648, 4896, 5440, 5616]

cp's OEIS Frontend

A340387 Numbers whose sum of prime indices is twice their number, counted with multiplicity in both cases.

Table of values

List of values