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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.

A034268 a(n) = LCM_{k=1..n} (2^k - 1).

Table of values

n a(n)
1 1
2 3
3 21
4 105
5 3255
6 9765
7 1240155
8 21082635
9 1539032355
10 16929355905
11 34654391537535
12 450507089987955
13 3690103574091339405
14 158674453685927594415
15 23959842506575066756665
16 6157679524189792156462905
17 807093212915080247739749421255

List of values

[1, 3, 21, 105, 3255, 9765, 1240155, 21082635, 1539032355, 16929355905, 34654391537535, 450507089987955, 3690103574091339405, 158674453685927594415, 23959842506575066756665, 6157679524189792156462905, 807093212915080247739749421255]

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

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