A293522 - cp's OEIS frontend

A293522 Number of bifurcating nodes at generation n in the binary tree of persistently squarefree numbers (see A293230).

n	a(n)
0	1
1	1
2	2
3	2
4	3
5	5
6	5
7	5
8	9
9	12
10	17
11	21
12	27
13	36
14	50
15	64
16	89
17	114
18	156
19	201
20	261
21	353
22	480
23	639
24	870
25	1163
26	1562
27	2116
28	2826
29	3798
30	5080
31	6884
32	9176
33	12329
34	16627
35	22262
36	29980
37	40421
38	54126
39	72642
40	97877
41	131266
42	176638
43	237227
44	318659
45	427624
46	574993
47	772511
48	1038418
49	1395802

[1, 1, 2, 2, 3, 5, 5, 5, 9, 12, 17, 21, 27, 36, 50, 64, 89, 114, 156, 201, 261, 353, 480, 639, 870, 1163, 1562, 2116, 2826, 3798, 5080, 6884, 9176, 12329, 16627, 22262, 29980, 40421, 54126, 72642, 97877, 131266, 176638, 237227, 318659, 427624, 574993, 772511, 1038418, 1395802]

cp's OEIS Frontend

A293522 Number of bifurcating nodes at generation n in the binary tree of persistently squarefree numbers (see A293230).

Table of values

List of values