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 1-10 of 18 results. Next

A142199 Primes congruent to 2 mod 41.

Original entry on oeis.org

2, 43, 617, 863, 1109, 1601, 1847, 2011, 2339, 2503, 2749, 3323, 3733, 4799, 5209, 5701, 5783, 6029, 6521, 7013, 7177, 7669, 8161, 8243, 9227, 9391, 9473, 9719, 9883, 10211, 10457, 10867, 10949, 11113, 11933, 12097, 12343, 12589, 12671, 12917, 13163, 13327
Offset: 1

Views

Author

N. J. A. Sloane, Jul 11 2008

Keywords

Crossrefs

Programs

A142200 Primes congruent to 3 mod 41.

Original entry on oeis.org

3, 167, 331, 577, 659, 823, 1069, 1151, 1889, 2053, 2381, 2791, 3037, 3119, 3529, 4021, 4349, 4513, 4759, 5087, 5333, 5743, 6317, 6481, 6563, 7219, 7547, 7793, 8039, 8941, 9187, 9433, 9679, 10007, 10253, 10499, 10663, 10909, 11483, 12713, 12959, 13451, 13697
Offset: 1

Views

Author

N. J. A. Sloane, Jul 11 2008

Keywords

Crossrefs

Programs

A142201 Primes congruent to 4 mod 41.

Original entry on oeis.org

127, 373, 619, 701, 947, 1193, 1439, 1931, 2341, 2423, 2833, 3079, 3407, 3571, 4391, 4637, 4801, 5867, 6113, 6277, 6359, 7507, 7589, 7753, 8081, 8573, 8737, 8819, 9311, 9721, 9803, 9967, 10459, 11197, 11279, 11443, 11689, 12263, 12919, 13001, 13411, 13903
Offset: 1

Views

Author

N. J. A. Sloane, Jul 11 2008

Keywords

Crossrefs

Programs

Formula

a(n) ~ 40n log n. - Charles R Greathouse IV, Jul 02 2016

A049573 Primes p such that x^41 = 2 has a solution mod p.

Original entry on oeis.org

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277
Offset: 1

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Keywords

Comments

Differs from A000040: 83 does not occur.

Examples

			0^41 == 2 (mod 2). 2^41 == 2 (mod 3). 2^41 == 2 (mod 5). 4^41 == 2 (mod 7). 2^41 == 2 (mod 11). 6^41 == 2 (mod 13). 2^41 == 2 (mod 17). 15^41 == 2 (mod 19). 13^41 == 2 (mod 23). 14^41 == 2 (mod 29). 2^41 == 2 (mod 31). 24^41 == 2 (mod 37). 2^41 == 2 (mod 41). 22^41 == 2 (mod 43). - _R. J. Mathar_, Jul 20 2025
		

Crossrefs

Cf. A000040, A059236 for primes not in this sequence.

Programs

  • Magma
    [p: p in PrimesUpTo(300) | exists(t){x : x in ResidueClassRing(p) | x^41 eq 2}]; // Vincenzo Librandi, Sep 14 2012
  • Mathematica
    ok[p_]:= Reduce[Mod[x^41 - 2, p] == 0, x, Integers] =!= False; Select[Prime[Range[100]], ok] (* Vincenzo Librandi, Sep 14 2012 *)

A142204 Primes congruent to 7 mod 41.

Original entry on oeis.org

7, 89, 499, 827, 991, 1237, 1319, 1483, 1811, 2221, 2467, 2549, 2713, 3041, 3533, 3697, 3779, 3943, 4271, 4517, 5009, 5419, 5501, 6977, 7879, 8699, 8863, 9109, 9437, 9601, 9929, 10093, 10667, 10831, 11159, 11897, 12143, 12553, 12799, 13127, 13291, 13537
Offset: 1

Views

Author

N. J. A. Sloane, Jul 11 2008

Keywords

Crossrefs

Programs

Formula

a(n) ~ 40n log n. - Charles R Greathouse IV, Jul 02 2016

A142205 Primes congruent to 8 mod 41.

Original entry on oeis.org

131, 541, 787, 1033, 1279, 1361, 1607, 2017, 2099, 2591, 2837, 3001, 3083, 3329, 3739, 3821, 4231, 4723, 4969, 5051, 5297, 5953, 6199, 6691, 7019, 7757, 8167, 8741, 9151, 9397, 9479, 9643, 10463, 10627, 10709, 11119, 11447, 11939, 12841, 12923, 13907, 14071
Offset: 1

Views

Author

N. J. A. Sloane, Jul 11 2008

Keywords

Crossrefs

Programs

Formula

a(n) ~ 40n log n. - Charles R Greathouse IV, Jul 02 2016

A142206 Primes congruent to 9 mod 41.

Original entry on oeis.org

173, 337, 419, 829, 911, 1321, 1567, 2141, 2551, 2633, 2797, 2879, 3371, 3617, 3863, 4027, 4273, 4519, 5011, 5503, 5749, 6323, 6569, 6733, 7307, 7717, 7963, 8209, 8291, 8537, 8783, 9029, 9439, 9521, 9767, 9931, 10177, 10259, 11161, 11243, 11489, 11981
Offset: 1

Views

Author

N. J. A. Sloane, Jul 11 2008

Keywords

Crossrefs

Programs

Formula

a(n) ~ 40n log n. - Charles R Greathouse IV, Jul 02 2016

A142208 Primes congruent to 11 mod 41.

Original entry on oeis.org

11, 257, 421, 503, 1487, 1733, 1979, 2143, 2389, 2963, 3209, 3373, 3701, 3947, 4111, 4357, 4603, 4931, 5669, 6079, 6571, 6653, 6899, 7309, 7883, 8293, 8539, 8867, 9277, 9769, 9851, 10343, 10589, 10753, 11491, 12721, 12967, 13049, 14033, 14197, 14771
Offset: 1

Views

Author

N. J. A. Sloane, Jul 11 2008

Keywords

Crossrefs

Programs

Formula

a(n) ~ 40n log n. - Charles R Greathouse IV, Jul 02 2016

A142209 Primes congruent to 12 mod 41.

Original entry on oeis.org

53, 463, 709, 1201, 1283, 1447, 1693, 2267, 2677, 3169, 3251, 3907, 3989, 4153, 4481, 4973, 5711, 6121, 6203, 6367, 6449, 7187, 7351, 7433, 8089, 8171, 8581, 8663, 9319, 9811, 10139, 10303, 10631, 11287, 11369, 11779, 12107, 12517, 12763, 13009, 13337
Offset: 1

Views

Author

N. J. A. Sloane, Jul 11 2008

Keywords

Crossrefs

Programs

Formula

a(n) ~ 40n log n. - Charles R Greathouse IV, Jul 02 2016

A142210 Primes congruent to 13 mod 41.

Original entry on oeis.org

13, 587, 751, 997, 1489, 1571, 2063, 2309, 2473, 2719, 2801, 3457, 3539, 4441, 4523, 4933, 5179, 5261, 5507, 6163, 6491, 6737, 6983, 7229, 7393, 7639, 8377, 8623, 8951, 9689, 10099, 10181, 10427, 10837, 11083, 11329, 11411, 11657, 11821, 11903, 12149
Offset: 1

Views

Author

N. J. A. Sloane, Jul 11 2008

Keywords

Crossrefs

Programs

Formula

a(n) ~ 40n log n. - Charles R Greathouse IV, Jul 02 2016
Showing 1-10 of 18 results. Next