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.

A067068 a(n) = n* - 2^n, where n* (A003418) = least common multiple of the numbers [1,...,n].

Table of values

n a(n)
1 -1
2 -2
3 -2
4 -4
5 28
6 -4
7 292
8 584
9 2008
10 1496
11 25672
12 23624
13 352168
14 343976
15 327592
16 655184
17 12121168
18 11990096
19 232268272
20 231743984
21 230695408
22 228598256
23 5345840272
24 5337451664
25 26737589968
26 26704035536
27 80179215472
28 80044997744

List of values

[-1, -2, -2, -4, 28, -4, 292, 584, 2008, 1496, 25672, 23624, 352168, 343976, 327592, 655184, 12121168, 11990096, 232268272, 231743984, 230695408, 228598256, 5345840272, 5337451664, 26737589968, 26704035536, 80179215472, 80044997744]