A178878 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A178878 as a simple table

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	10
10	12
11	14
12	15
13	16
14	20
15	21
16	24
17	28
18	30
19	35
20	40
21	42
22	48
23	56
24	60
25	70
26	80
27	84
28	105
29	112
30	120
31	140
32	168
33	210
34	240
35	280
36	336
37	420
38	560
39	840
40	1680

[1,2,3,4,5,6,7,8,10,12,14,15,16,20,21,24,28,30,35, 40,42,48,56,60,70,80,84,105,112,120,140,168,210, 240,280,336,420,560,840,1680]