A338237 - cp's OEIS frontend

A338237 a(n) is the number of nodes with depth of n in a binary tree defined as: root = 1 and a child (C) of a node (N) is such that C - primepi(C) = N, or A062298(C) = N. For a node with two children, the smaller child is assigned as the left child and the bigger one as the right child. Otherwise, the child is assigned as the left child.

n	a(n)
0	1
1	2
2	4
3	6
4	8
5	11
6	15
7	18
8	24
9	30
10	36
11	46
12	54
13	66
14	78
15	94
16	110
17	130
18	154
19	179
20	205
21	240
22	278
23	317
24	365
25	418
26	474
27	539
28	612
29	692
30	783
31	885
32	993
33	1116
34	1254
35	1399
36	1570
37	1752
38	1950
39	2166
40	2408
41	2690
42	2976
43	3287
44	3644
45	4023
46	4449
47	4892
48	5391
49	5946
50	6523
51	7169

[1, 2, 4, 6, 8, 11, 15, 18, 24, 30, 36, 46, 54, 66, 78, 94, 110, 130, 154, 179, 205, 240, 278, 317, 365, 418, 474, 539, 612, 692, 783, 885, 993, 1116, 1254, 1399, 1570, 1752, 1950, 2166, 2408, 2690, 2976, 3287, 3644, 4023, 4449, 4892, 5391, 5946, 6523, 7169]

cp's OEIS Frontend

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