A332974 - cp's OEIS frontend

A332974 Solutions k of the equation s(k) = s(k-1) + s(k-2) where s(k) = usigma(k) - k is the sum of proper unitary divisors of k (A063919).

n	a(n)
1	3
2	21
3	321
4	1257
5	3237
6	146139
7	268713
8	584835
9	26749089
10	9988999095
11	25997557299
12	54449485353
13	935628578283
14	2105722150095
15	3921293253003
16	8234992646643

[3, 21, 321, 1257, 3237, 146139, 268713, 584835, 26749089, 9988999095, 25997557299, 54449485353, 935628578283, 2105722150095, 3921293253003, 8234992646643]

cp's OEIS Frontend

A332974 Solutions k of the equation s(k) = s(k-1) + s(k-2) where s(k) = usigma(k) - k is the sum of proper unitary divisors of k (A063919).

Table of values

List of values