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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.

A344142 Lexicographically first irreducible polynomial over GF(2) of degree n with the lowest possible number of terms, evaluated at X = 2.

Table of values

n a(n)
1 2
2 7
3 11
4 19
5 37
6 67
7 131
8 283
9 515
10 1033
11 2053
12 4105
13 8219
14 16417
15 32771
16 65579
17 131081
18 262153
19 524327
20 1048585
21 2097157
22 4194307
23 8388641
24 16777243
25 33554441
26 67108891
27 134217767
28 268435459
29 536870917
30 1073741827
31 2147483657
32 4294967437
33 8589935617

List of values

[2, 7, 11, 19, 37, 67, 131, 283, 515, 1033, 2053, 4105, 8219, 16417, 32771, 65579, 131081, 262153, 524327, 1048585, 2097157, 4194307, 8388641, 16777243, 33554441, 67108891, 134217767, 268435459, 536870917, 1073741827, 2147483657, 4294967437, 8589935617]

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

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