cp's OEIS Frontend

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.

A161215 a(n) = ((2^b-1)/phi(n))*Sum_{d|n} Moebius(n/d)*d^(b-1) for b = 17.

Table of values

n a(n)
1 131071
2 8589737985
3 2821088318560
4 281468534292480
5 4999961852994576
6 184880022956829600
7 725978907114673600
8 9223160931695984640
9 40479533921803813920
10 327672500035999538160
11 602267704294826658336
12 6058148592249392332800
13 7268068365187380400720

List of values

[131071, 8589737985, 2821088318560, 281468534292480, 4999961852994576, 184880022956829600, 725978907114673600, 9223160931695984640, 40479533921803813920, 327672500035999538160, 602267704294826658336, 6058148592249392332800, 7268068365187380400720]

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

Content is available under The OEIS End-User License Agreement.