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.

Showing 1-3 of 3 results.

A234749 Fixed points of permutation A234746.

Original entry on oeis.org

3, 12, 13, 14, 85, 86, 87, 96, 97, 102, 103, 216, 217, 218, 219, 230, 231, 236, 237, 308, 313, 314, 323, 324, 325, 1370, 1371, 1372, 1373, 1382, 1383, 1388, 1389, 1446, 1447, 1452, 1453, 1464, 1465, 1466, 1467, 1600, 1601, 1606, 1615, 1616, 1617, 1678, 1679, 1680, 1691, 1692, 1697, 1698
Offset: 1

Views

Author

Antti Karttunen, Feb 15 2014

Keywords

Comments

A234752 gives the corresponding binary encodings for those reducible GF(2)[X] polynomials that are fixed by blue code (A193231).
Fixed points of A234751 seem to be rarer. The first 22 values are: 3, 6, 21, 52, 55, 200, 203, 212, 461, 462, 479, 480, 483, 2150, 2151, 2176, 2177, 2190, 2195, 2208, 2209, 2214.

Links

Crossrefs

Cf. A234746, A234752, A193231, A118666.

A234745 Blue-code restricted to reducible polynomials over GF(2): a(n) = A193231(A091242(n)).

Original entry on oeis.org

5, 4, 6, 15, 14, 12, 10, 9, 8, 17, 16, 18, 20, 21, 23, 22, 30, 29, 28, 27, 26, 24, 51, 50, 48, 49, 54, 53, 52, 60, 63, 62, 57, 56, 58, 34, 35, 33, 32, 39, 38, 36, 45, 44, 46, 40, 43, 42, 85, 84, 86, 80, 81, 83, 82, 90, 89, 88, 95, 94, 92, 93, 68, 69, 71, 70, 65, 64
Offset: 1

Views

Author

Antti Karttunen, Feb 15 2014

Keywords

Links

Crossrefs

Cf. A193231, A091242, A234746, A234750.

Programs

Formula

a(n) = A193231(A091242(n)).

A234752 Binary encodings of reducible polynomials over GF(2)that are fixed by blue code: a(n) = A091242(A234749(n)).

Original entry on oeis.org

6, 18, 20, 21, 106, 107, 108, 120, 121, 126, 127, 258, 259, 260, 261, 272, 273, 278, 279, 360, 366, 367, 378, 380, 381, 1546, 1547, 1548, 1549, 1560, 1561, 1566, 1567, 1632, 1633, 1638, 1639, 1650, 1651, 1652, 1653, 1800, 1801, 1806, 1818, 1819, 1820, 1890, 1892, 1893, 1904, 1905, 1910, 1911
Offset: 1

Views

Author

Antti Karttunen, Feb 15 2014

Keywords

Comments

Irreducible polynomials over GF(2) (A014580) fixed by blue code (A193231) seem to be much rarer. The first 22 cases are: 7, 19, 109, 361, 379, 1807, 1821, 1891, 4645, 4663, 4897, 4915, 4941, 27327, 27329, 27589, 27607, 27829, 27851, 28067, 28081, 28125.

Links

Crossrefs

Intersection of A091242 and A118666.
Cf. A193231, A234745, A234746, A234749.

Programs

Formula

a(n) = A091242(A234749(n)).
Showing 1-3 of 3 results.

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