A246520 - cp's OEIS frontend

A246520 Largest number that can be written in binary as concatenation of (n - k) and (n + k), 0 <= k <= n.

n	a(n)
0	0
1	3
2	10
3	20
4	36
5	45
6	72
7	104
8	136
9	153
10	170
11	208
12	272
13	336
14	400
15	464
16	528
17	561
18	594
19	627
20	660
21	693
22	800
23	928
24	1056
25	1184
26	1312
27	1440
28	1568
29	1696
30	1824
31	1952
32	2080
33	2145
34	2210
35	2275
36	2340
37	2405
38	2470
39	2535
40	2600
41	2665
42	2730
43	2880
44	3136
45	3392
46	3648
47	3904

[0, 3, 10, 20, 36, 45, 72, 104, 136, 153, 170, 208, 272, 336, 400, 464, 528, 561, 594, 627, 660, 693, 800, 928, 1056, 1184, 1312, 1440, 1568, 1696, 1824, 1952, 2080, 2145, 2210, 2275, 2340, 2405, 2470, 2535, 2600, 2665, 2730, 2880, 3136, 3392, 3648, 3904]

cp's OEIS Frontend

A246520 Largest number that can be written in binary as concatenation of (n - k) and (n + k), 0 <= k <= n.

Table of values

List of values