A363829 Sum of the divisors of A000129(n) (Pell numbers).
1, 3, 6, 28, 30, 144, 183, 1080, 1188, 3780, 5742, 52416, 33462, 131760, 251100, 1290096, 1145124, 5702400, 6804204, 42336000, 50176404, 146352096, 226041700, 2333111040, 1357893000, 4818528000, 9395060400, 47385112320, 44560482150, 251337038400, 264178169640
Offset: 1
Keywords
Examples
a(9)=1188 because Pell(9)=985 has divisors {1, 5, 197, 985}.
Links
- Amiram Eldar, Table of n, a(n) for n = 1..630 (calculated using Jon E. Schoenfield's a-file at A000129)
Programs
-
Mathematica
DivisorSigma[1, LinearRecurrence[{2, 1}, {1, 2}, 32]] (* Amiram Eldar, Oct 19 2023 *)