A300780 - cp's OEIS frontend

A300780 Pairs of numbers producing consecutive odd sums of divisors, i.e., sigma(a(2k)) = sigma(a(2k-1)) + 2, with sigma values given in A300779.

n	a(n)
1	1
2	2
3	9
4	8
5	36
6	50
7	241081
8	117128
9	15069924
10	23011209
11	95887457649
12	92943436658
13	31623999684484
14	31716423048338
15	48730521525625
16	55647526914529
17	202869088076944
18	238595412613156
19	316982950120225
20	238595412613156
21	12016309156631329
22	9203885645879282

[1, 2, 9, 8, 36, 50, 241081, 117128, 15069924, 23011209, 95887457649, 92943436658, 31623999684484, 31716423048338, 48730521525625, 55647526914529, 202869088076944, 238595412613156, 316982950120225, 238595412613156, 12016309156631329, 9203885645879282]

cp's OEIS Frontend

A300780 Pairs of numbers producing consecutive odd sums of divisors, i.e., sigma(a(2k)) = sigma(a(2k-1)) + 2, with sigma values given in A300779.

Table of values

List of values

cp's OEIS Frontend

A300780 Pairs of numbers producing consecutive odd sums of divisors, i.e., sigma(a(2*k)) = sigma(a(2*k-1)) + 2, with sigma values given in A300779.

Table of values

List of values

A300780 Pairs of numbers producing consecutive odd sums of divisors, i.e., sigma(a(2k)) = sigma(a(2k-1)) + 2, with sigma values given in A300779.