A356371 - cp's OEIS frontend

A356371 a(n) is the smallest positive integer k, such that set of pairwise gcd of k, k+1, ..., k+n has a cardinality of n.

n	a(n)
1	1
2	2
3	3
4	8
5	15
6	24
7	35
8	48
9	63
10	270
11	440
12	528
13	780
14	1078
15	2925
16	1440
17	8160
18	2142
19	5472
20	34560
21	23919
22	235598
23	64239
24	42480
25	158400
26	1255800
27	1614600
28	1247400
29	16442971
30	8233650
31	41021370
32	21561120
33	127327167
34	439824000
35	439824000
36	24504444
37	1329112224
38	1653775162

[1, 2, 3, 8, 15, 24, 35, 48, 63, 270, 440, 528, 780, 1078, 2925, 1440, 8160, 2142, 5472, 34560, 23919, 235598, 64239, 42480, 158400, 1255800, 1614600, 1247400, 16442971, 8233650, 41021370, 21561120, 127327167, 439824000, 439824000, 24504444, 1329112224, 1653775162]

cp's OEIS Frontend

A356371 a(n) is the smallest positive integer k, such that set of pairwise gcd of k, k+1, ..., k+n has a cardinality of n.

Table of values

List of values