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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A203859 a(n) = (1/n) * Sum_{d|n} moebius(n/d) * Lucas(d)^8, where Lucas(n) = A000204(n).

Table of values

n a(n)
1 1
2 3280
3 21845
4 1439560
5 42871776
6 1836648080
7 71463773280
8 2976410112120
9 123670531932160
10 5238909421389744
11 223579471959374400
12 9630874585937597160
13 417598023129771078720
14 18217658692611614215920
15 798773601460909332885856
16 35180230663617319463871240

List of values

[1, 3280, 21845, 1439560, 42871776, 1836648080, 71463773280, 2976410112120, 123670531932160, 5238909421389744, 223579471959374400, 9630874585937597160, 417598023129771078720, 18217658692611614215920, 798773601460909332885856, 35180230663617319463871240]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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