A247461 - cp's OEIS frontend

A247461 Subsequence obtained from A026242 by applying an Eratosthenes-type sieve: strike out every second number after the first "2", then if m is the next number not yet struck out, strike out every m-th number following this one, etc.

n	a(n)
1	1
2	1
3	2
4	3
5	4
6	5
7	8
8	15
9	20
10	35
11	50
12	37
13	40
14	46
15	109
16	124
17	134
18	92
19	183
20	198
21	223
22	159
23	272
24	282
25	205
26	214
27	356
28	371
29	406
30	445
31	480
32	495
33	312
34	321
35	569
36	579
37	367
38	628
39	653
40	434
41	742
42	801
43	816
44	851
45	535
46	925
47	940
48	587
49	596
50	999
51	1014
52	1024
53	709
54	755
55	1261

[1, 1, 2, 3, 4, 5, 8, 15, 20, 35, 50, 37, 40, 46, 109, 124, 134, 92, 183, 198, 223, 159, 272, 282, 205, 214, 356, 371, 406, 445, 480, 495, 312, 321, 569, 579, 367, 628, 653, 434, 742, 801, 816, 851, 535, 925, 940, 587, 596, 999, 1014, 1024, 709, 755, 1261]

cp's OEIS Frontend

A247461 Subsequence obtained from A026242 by applying an Eratosthenes-type sieve: strike out every second number after the first "2", then if m is the next number not yet struck out, strike out every m-th number following this one, etc.

Table of values

List of values