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 14 results. Next

A028276 Elements in 4-Pascal triangle A028275 (by row) that are not 1.

Original entry on oeis.org

4, 5, 5, 6, 10, 6, 7, 16, 16, 7, 8, 23, 32, 23, 8, 9, 31, 55, 55, 31, 9, 10, 40, 86, 110, 86, 40, 10, 11, 50, 126, 196, 196, 126, 50, 11, 12, 61, 176, 322, 392, 322, 176, 61, 12, 13, 73, 237, 498, 714, 714, 498, 237, 73, 13, 14, 86, 310, 735, 1212, 1428, 1212, 735, 310
Offset: 0

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Author

Mohammad K. Azarian

Keywords

Extensions

More terms from James Sellers

A028283 Central elements in 4-Pascal triangle A028275 (by row).

Original entry on oeis.org

1, 4, 10, 32, 110, 392, 1428, 5280, 19734, 74360, 281996, 1074944, 4115020, 15808912, 60917800, 235350720, 911315430, 3535767000, 13742347740, 53495534400, 208537056420, 813950932080, 3180614712600, 12441628655040
Offset: 0

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Author

Mohammad K. Azarian

Keywords

Comments

Equals A000984, [1, 2, 6, 20, 70, ...] convolved with [1, 2, 0, 0, 0, ...]. - Gary W. Adamson, Jun 05 2009

Crossrefs

Cf. A000108, A028275, A051960.

Formula

a(n) = 2*A051960(n-1).
a(n) = 2*A000108(n)*(3n-1). - Ralf Stephan, Aug 24 2003

A028279 Even elements in 4-Pascal triangle A028275 (by row).

Original entry on oeis.org

4, 6, 10, 6, 16, 16, 8, 32, 8, 10, 40, 86, 110, 86, 40, 10, 50, 126, 196, 196, 126, 50, 12, 176, 322, 392, 322, 176, 12, 498, 714, 714, 498, 14, 86, 310, 1212, 1428, 1212, 310, 86, 14, 100, 396, 2640, 2640, 396, 100, 16, 496, 2992, 5280, 2992, 496, 16, 18, 148
Offset: 0

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Author

Mohammad K. Azarian

Keywords

Extensions

More terms from James Sellers

A028286 Even elements to right of central elements in 4-Pascal triangle A028275.

Original entry on oeis.org

6, 16, 8, 86, 40, 10, 196, 126, 50, 322, 176, 12, 714, 498, 1212, 310, 86, 14, 2640, 396, 100, 2992, 496, 16, 17446, 12012, 6370, 2548, 742, 148, 18, 37180, 29458, 18382, 8918, 3290, 890, 166, 66638, 47840, 27300, 12208, 4180, 1056, 20, 140998, 114478
Offset: 0

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Author

Mohammad K. Azarian

Keywords

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More terms from James Sellers

A028277 Odd elements in 4-Pascal triangle A028275 (by row).

Original entry on oeis.org

1, 1, 1, 1, 1, 1, 5, 5, 1, 1, 1, 1, 7, 7, 1, 1, 23, 23, 1, 1, 9, 31, 55, 55, 31, 9, 1, 1, 1, 1, 11, 11, 1, 1, 61, 61, 1, 1, 13, 73, 237, 237, 73, 13, 1, 1, 735, 735, 1, 1, 15, 1045, 1947, 1947, 1045, 15, 1, 1, 115, 1441, 4587, 4587, 1441, 115, 1, 1, 17, 131, 611, 1937, 4433
Offset: 0

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Author

Mohammad K. Azarian

Keywords

Extensions

More terms from James Sellers

A028278 Odd elements in 4-Pascal triangle A028275 (by row) that are not 1.

Original entry on oeis.org

5, 5, 7, 7, 23, 23, 9, 31, 55, 55, 31, 9, 11, 11, 61, 61, 13, 73, 237, 237, 73, 13, 735, 735, 15, 1045, 1947, 1947, 1045, 15, 115, 1441, 4587, 4587, 1441, 115, 17, 131, 611, 1937, 4433, 7579, 9867, 9867, 7579, 4433, 1937, 611, 131, 17, 19, 19, 185, 185, 21, 205
Offset: 0

Views

Author

Mohammad K. Azarian

Keywords

Extensions

More terms from James Sellers

A028280 Distinct elements in 4-Pascal triangle A028275 (by row).

Original entry on oeis.org

1, 4, 5, 6, 10, 7, 16, 8, 23, 32, 9, 31, 55, 40, 86, 110, 11, 50, 126, 196, 12, 61, 176, 322, 392, 13, 73, 237, 498, 714, 14, 310, 735, 1212, 1428, 15, 100, 396, 1045, 1947, 2640, 115, 496, 1441, 2992, 4587, 5280, 17, 131, 611, 1937, 4433, 7579, 9867, 18, 148, 742
Offset: 0

Views

Author

Mohammad K. Azarian

Keywords

Extensions

More terms from James Sellers

A028281 Distinct odd elements in 4-Pascal triangle A028275 (by row).

Original entry on oeis.org

1, 5, 7, 23, 9, 31, 55, 11, 61, 13, 73, 237, 735, 15, 1045, 1947, 115, 1441, 4587, 17, 131, 611, 1937, 4433, 7579, 9867, 19, 185, 21, 205, 1241, 6477, 7923, 28101, 271, 9595, 105621, 25, 295, 2191, 11515, 45619, 141645, 353685, 1076559, 27, 1571889
Offset: 0

Views

Author

Mohammad K. Azarian

Keywords

Extensions

More terms from James Sellers

A028282 Distinct even elements in 4-Pascal triangle A028275 (by row).

Original entry on oeis.org

4, 6, 10, 16, 8, 32, 40, 86, 110, 50, 126, 196, 12, 176, 322, 392, 498, 714, 14, 310, 1212, 1428, 100, 396, 2640, 496, 2992, 5280, 18, 148, 742, 2548, 6370, 12012, 17446, 19734, 166, 890, 3290, 8918, 18382, 29458, 37180, 20, 1056, 4180, 12208, 27300
Offset: 0

Views

Author

Mohammad K. Azarian

Keywords

Extensions

More terms from James Sellers

A028284 Elements to right of central elements in 4-Pascal triangle A028275.

Original entry on oeis.org

1, 1, 5, 1, 6, 1, 16, 7, 1, 23, 8, 1, 55, 31, 9, 1, 86, 40, 10, 1, 196, 126, 50, 11, 1, 322, 176, 61, 12, 1, 714, 498, 237, 73, 13, 1, 1212, 735, 310, 86, 14, 1, 2640, 1947, 1045, 396, 100, 15, 1, 4587, 2992, 1441, 496, 115, 16, 1, 9867, 7579, 4433, 1937, 611, 131
Offset: 0

Views

Author

Mohammad K. Azarian

Keywords

Extensions

More terms from James Sellers
Showing 1-10 of 14 results. Next

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