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.

A074587 Sum of the coefficients of the n-th Moebius polynomial, M(n,x), where M(n,-1) = mu(n), the Moebius function of n.

Table of values

n a(n)
1 1
2 3
3 7
4 18
5 37
6 85
7 171
8 364
9 736
10 1513
11 3027
12 6168
13 12337
14 24849
15 49743
16 99872
17 199745
18 400322
19 800645
20 1602862
21 3205903
22 6414837
23 12829675
24 25665996
25 51332030
26 102676401
27 205353546
28 410732134
29 821464269
30 1642979927
31 3285959855

List of values

[1, 3, 7, 18, 37, 85, 171, 364, 736, 1513, 3027, 6168, 12337, 24849, 49743, 99872, 199745, 400322, 800645, 1602862, 3205903, 6414837, 12829675, 25665996, 51332030, 102676401, 205353546, 410732134, 821464269, 1642979927, 3285959855]