A293519 - cp's OEIS frontend

A293519 Number of surviving (but not bifurcating) odd nodes at generation n in the binary tree of persistently squarefree numbers (see A293230).

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	0
6	2
7	3
8	2
9	3
10	3
11	8
12	10
13	11
14	17
15	20
16	31
17	38
18	46
19	67
20	90
21	116
22	160
23	220
24	280
25	397
26	509
27	685
28	927
29	1280
30	1663
31	2248
32	3056
33	4050
34	5383
35	7339
36	9714
37	13029
38	17714
39	23738
40	31791
41	42793
42	57473
43	77175
44	103839
45	140100
46	187495
47	252068
48	338257
49	454325
50	611101
51	820924

[0, 0, 0, 1, 1, 0, 2, 3, 2, 3, 3, 8, 10, 11, 17, 20, 31, 38, 46, 67, 90, 116, 160, 220, 280, 397, 509, 685, 927, 1280, 1663, 2248, 3056, 4050, 5383, 7339, 9714, 13029, 17714, 23738, 31791, 42793, 57473, 77175, 103839, 140100, 187495, 252068, 338257, 454325, 611101, 820924]

cp's OEIS Frontend

A293519 Number of surviving (but not bifurcating) odd nodes at generation n in the binary tree of persistently squarefree numbers (see A293230).

Table of values

List of values