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 1-6 of 6 results.

A025053 Positions of primes in sequence A025051 (numbers of form j*k + k*i + i*j, without repetitions, where 1 <=i <= j <= k).

Original entry on oeis.org

1, 2, 3, 6, 8, 12, 13, 16, 22, 23, 29, 33, 34, 38, 44, 49, 51, 57, 60, 62, 67, 71, 77, 85, 89, 90, 94, 96, 100, 114, 117, 123, 125, 135, 137, 143, 149, 153, 159, 165, 167, 176, 178, 182, 184, 195, 207, 211, 213, 217, 223, 225, 235, 241, 247, 253, 255, 261, 265, 267, 277, 291, 295, 297
Offset: 1

Views

Author

Clark Kimberling

Keywords

Crossrefs

Cf. A025051.

Extensions

a(34) onward corrected and more terms from Sean A. Irvine, Aug 05 2019

A025054 Positions of even numbers in sequence A025051 (numbers of form j*k + k*i + i*j, without repetitions, where 1 <= i <= j <= k).

Original entry on oeis.org

4, 7, 9, 11, 14, 17, 19, 21, 24, 26, 28, 30, 32, 35, 37, 39, 41, 43, 45, 47, 50, 52, 54, 56, 58, 61, 63, 65, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148
Offset: 1

Views

Author

Clark Kimberling

Keywords

Crossrefs

Cf. A025051.

Extensions

a(58) onward corrected by Sean A. Irvine, Aug 05 2019

A025055 Positions of odd numbers in sequence A025051 (numbers of form j*k + k*i + i*j, without repetitions, where 1 <= i <= j <= k).

Original entry on oeis.org

1, 2, 3, 5, 6, 8, 10, 12, 13, 15, 16, 18, 20, 22, 23, 25, 27, 29, 31, 33, 34, 36, 38, 40, 42, 44, 46, 48, 49, 51, 53, 55, 57, 59, 60, 62, 64, 66, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 117, 119, 121, 123, 125, 127, 129
Offset: 1

Views

Author

Clark Kimberling

Keywords

Crossrefs

Cf. A025051.

Extensions

a(71) corrected by Sean A. Irvine, Aug 05 2019

A025056 a(n) = position of 3*n^2 in sequence A025051 (numbers of form j*k + k*i + i*j, without repetitions, where 1 <= i <= j <= k).

Original entry on oeis.org

1, 7, 20, 39, 64, 95, 133, 177, 227, 284, 346, 415, 489, 570, 657, 750, 849, 954, 1065, 1182, 1305, 1434, 1569, 1710, 1857, 2010, 2169, 2334, 2505, 2682, 2865, 3054, 3249, 3450, 3657, 3870, 4089, 4314, 4545, 4782, 5025, 5274, 5529, 5790, 6057, 6330, 6609, 6894
Offset: 1

Views

Author

Clark Kimberling

Keywords

Crossrefs

Cf. A025051.

Extensions

a(5) onward corrected and more terms from Sean A. Irvine, Aug 05 2019

A025057 Position of 3n+2 in A025051 (numbers of form j*k + k*i + i*j, without repetitions, where 1 <= i <= j <= k).

Original entry on oeis.org

2, 4, 6, 9, 12, 14, 16, 19, 22, 24, 27, 30, 33, 35, 38, 41, 44, 47, 49, 52, 55, 58, 60, 63, 66, 68, 71, 74, 77, 80, 83, 86, 89, 91, 94, 97, 100, 103, 106, 109, 112, 115, 117, 120, 123, 126, 129, 132, 135, 138, 141, 144, 147, 150, 153, 156, 159, 162, 165, 168, 171, 174, 176, 179
Offset: 1

Views

Author

Clark Kimberling

Keywords

Crossrefs

Cf. A025051.

Extensions

More terms from Sean A. Irvine, Aug 05 2019

A025050 Numbers of form j*k + k*i + i*j, where 1 <=i <= j <= k, including repetitions.

Original entry on oeis.org

3, 5, 7, 8, 9, 11, 11, 12, 13, 14, 15, 15, 16, 17, 17, 19, 19, 20, 20, 21, 21, 23, 23, 23, 24, 24, 25, 26, 26, 27, 27, 27, 28, 29, 29, 29, 31, 31, 31, 32, 32, 32, 33, 33, 34, 35, 35, 35, 35, 36, 36, 37, 38, 38, 39, 39, 39, 39, 40, 40, 41, 41, 41, 41, 43, 43, 44, 44, 44, 44, 45, 45, 45, 46, 47, 47
Offset: 1

Views

Author

Clark Kimberling

Keywords

Crossrefs

See A025051.
Showing 1-6 of 6 results.

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

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