A364707 - cp's OEIS frontend

A364707 a(n) is the least practical number A005153(k) such that A005153(k+1) - A005153(k) = 2*n, or -1 if no such number exists.

n	a(n)
1	2
2	8
3	42
4	112
5	368
6	180
7	1806
8	936
9	840
10	1600
11	14168
12	6216
13	25120
14	6272
15	16770
16	52668
17	83720
18	24240
19	103840
20	29440
21	35910
22	184140
23	278334
24	197912
25	282150
26	313040
27	266112
28	337840
29	1438722
30	468540
31	1254016
32	319808
33	1486584
34	2566432
35	1321376
36	2003688
37	7163646
38	3121328

[2, 8, 42, 112, 368, 180, 1806, 936, 840, 1600, 14168, 6216, 25120, 6272, 16770, 52668, 83720, 24240, 103840, 29440, 35910, 184140, 278334, 197912, 282150, 313040, 266112, 337840, 1438722, 468540, 1254016, 319808, 1486584, 2566432, 1321376, 2003688, 7163646, 3121328]

cp's OEIS Frontend

A364707 a(n) is the least practical number A005153(k) such that A005153(k+1) - A005153(k) = 2*n, or -1 if no such number exists.

Table of values

List of values