A374218 - cp's OEIS frontend

A374218 After the initial 1, numbers k such that A347381 obtains its minimum value at k, of all the divisors d of k larger than one, where A347381 is the distance from n to the nearest common ancestor of n and sigma(n) in the Doudna-tree (A005940).

n	a(n)
1	1
2	2
3	6
4	15
5	28
6	77
7	189
8	496
9	899
10	945
11	1271
12	1403
13	2125
14	3127
15	3139
16	6375
17	8128
18	8383
19	9261
20	13843
21	15247
22	15631
23	30240
24	32760
25	45151
26	46305
27	47263
28	54053
29	54653
30	58339
31	63767
32	65473
33	73813
34	79567
35	89951
36	92783
37	94957
38	97969
39	133907
40	142859
41	155011
42	161257
43	189209
44	211621
45	249001
46	293323
47	333961
48	360883
49	368063

[1, 2, 6, 15, 28, 77, 189, 496, 899, 945, 1271, 1403, 2125, 3127, 3139, 6375, 8128, 8383, 9261, 13843, 15247, 15631, 30240, 32760, 45151, 46305, 47263, 54053, 54653, 58339, 63767, 65473, 73813, 79567, 89951, 92783, 94957, 97969, 133907, 142859, 155011, 161257, 189209, 211621, 249001, 293323, 333961, 360883, 368063]

cp's OEIS Frontend

A374218 After the initial 1, numbers k such that A347381 obtains its minimum value at k, of all the divisors d of k larger than one, where A347381 is the distance from n to the nearest common ancestor of n and sigma(n) in the Doudna-tree (A005940).

Table of values

List of values