A127180 - cp's OEIS frontend

A127180 a(n) = smallest possible (product of b(k)'s + product of c(k)'s), where the positive integers <= n are partitioned somehow into {b(k)} and {c(k)}.

n	a(n)
0	2
1	2
2	3
3	5
4	10
5	22
6	54
7	142
8	402
9	1206
10	3810
11	12636
12	43776
13	157824
14	590520
15	2287080
16	9148320
17	37719360
18	160029696
19	697553280
20	3119552640
21	14295585696
22	67052240640
23	321571257120
24	1575370944000
25	7876854720000
26	40164235953600

[2, 2, 3, 5, 10, 22, 54, 142, 402, 1206, 3810, 12636, 43776, 157824, 590520, 2287080, 9148320, 37719360, 160029696, 697553280, 3119552640, 14295585696, 67052240640, 321571257120, 1575370944000, 7876854720000, 40164235953600]

cp's OEIS Frontend

A127180 a(n) = smallest possible (product of b(k)'s + product of c(k)'s), where the positive integers <= n are partitioned somehow into {b(k)} and {c(k)}.

Table of values

List of values