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 1-7 of 7 results.

A083797 Diagonal of A083796.

Original entry on oeis.org

1, 1, 3, 6, 14, 30, 39, 28, 804, 1620, 2465, 15048, 27642, 138502, 360255, 360120, 720584, 8648478, 12252069, 208287880, 232792350, 232792098, 232792307, 2327925312, 5354228580, 16062686250, 26771144049, 26771143896, 80313432794
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 08 2003

Keywords

Crossrefs

Cf. A083796, A083798, A083799.
Cf. A101085.

Extensions

More terms from David Wasserman, Nov 30 2004

A083798 Triangle obtained by replacing each term in A083796 with the sum of all other terms in that row.

Original entry on oeis.org

0, 1, 2, 5, 4, 3, 13, 12, 9, 8, 23, 22, 21, 20, 10, 47, 46, 45, 44, 40, 18, 59, 58, 57, 56, 55, 54, 21, 59, 58, 57, 56, 55, 54, 49, 32, 839, 838, 837, 836, 835, 834, 833, 832, 36, 1679, 1678, 1677, 1676, 1675, 1674, 1673, 1672, 1656, 60, 2519, 2518, 2517, 2516, 2515, 2514, 2513, 2512, 2511, 2510, 55
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 08 2003

Keywords

Examples

			0
1 2
5 4 3
13 12 9 8
23 22 21 20 10
...

Crossrefs

Cf. A083796, A083797, A083799.

Extensions

Extended and a(1) corrected by Max Alekseyev, Nov 04 2015

A083801 Triangle read by rows obtained by replacing each term T(n,k) in A083796 with the sum, divided by r, of the other n-1 terms in the n-th row.

Original entry on oeis.org

1, 1, 1, 5, 2, 1, 13, 6, 3, 2, 23, 11, 7, 5, 2, 47, 23, 15, 11, 8, 3, 59, 29, 19, 14, 11, 9, 3, 59, 29, 19, 14, 11, 9, 7, 4, 839, 419, 279, 209, 167, 139, 119, 104, 4, 1679, 839, 559, 419, 335, 279, 239, 209, 184, 6, 2519, 1259, 839, 629, 503, 419, 359, 314, 279, 251, 5
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 08 2003

Keywords

Crossrefs

Cf. A083796 - A083802.

Extensions

Edited and extended by Herman Jamke (hermanjamke(AT)fastmail.fm), Dec 23 2007

A101085 Diagonal below the main diagonal of A083796, i.e., a(n) = A083796(n, n-1).

Original entry on oeis.org

2, 2, 5, 4, 8, 6, 11, 8, 24, 10, 17, 12, 20, 14, 135, 16, 26, 18, 29, 20, 252, 22, 35, 24, 90, 26, 153, 28, 44, 30, 47, 32, 594, 34, 665, 36, 56, 38, 819, 40, 62, 42, 65, 44, 1080, 46, 71, 48, 224, 50, 1377, 52, 80, 54, 1595, 56, 1710, 58, 89, 60, 92, 62, 2079, 64, 2210, 66
Offset: 2

Views

Author

David Wasserman, Nov 30 2004

Keywords

Comments

a(n) is the least k such that 1) n divides k + (n-1)(n-2)/2; 2) k > n-2; 3) A048671(n-1) divides k.

Crossrefs

Cf. A048671, A083796, A083797.

A083799 Main diagonal of A083798.

Original entry on oeis.org

0, 2, 3, 8, 10, 18, 21, 32, 36, 60, 55, 72, 78, 98, 105, 240, 136, 162, 171, 200, 210, 462, 253, 288, 300, 390, 351, 504, 406, 450, 465, 512, 528, 1122, 595, 1260, 666, 722, 741, 1560, 820, 882, 903, 968, 990, 2070, 1081, 1152, 1176, 1400, 1275, 2652, 1378, 1458, 1485, 3080, 1596, 3306, 1711, 1800, 1830
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 08 2003

Keywords

Crossrefs

Cf. A083796, A083797, A083798, A083800, A083801, A083802.

Extensions

Corrected and extended by Max Alekseyev, Nov 04 2015

A083802 a(n) = A083799(n)/n.

Original entry on oeis.org

0, 1, 1, 2, 2, 3, 3, 4, 4, 6, 5, 6, 6, 7, 7, 15, 8, 9, 9, 10, 10, 21, 11, 12, 12, 15, 13, 18, 14, 15, 15, 16, 16, 33, 17, 35, 18, 19, 19, 39, 20, 21, 21, 22, 22, 45, 23, 24, 24, 28, 25, 51, 26, 27, 27, 55, 28, 57, 29, 30, 30, 31, 31, 63, 32, 65, 33, 34, 34, 69, 35, 36, 36, 37, 37, 75, 38, 77, 39, 40, 40
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 08 2003

Keywords

Crossrefs

Cf. A083796, A083797, A083798, A083799, A083800, A083801.

Extensions

Corrected and extended by Max Alekseyev, Nov 04 2015

A083800 First column of A083798.

Original entry on oeis.org

0, 1, 5, 13, 23, 47, 59, 59, 839, 1679, 2519, 15119, 27719, 138599, 360359, 360359, 720719, 8648639, 12252239, 208288079, 232792559, 232792559, 232792559, 2327925599, 5354228879, 16062686639, 26771144399, 26771144399, 80313433199, 1204701497999, 2329089562799, 16303626939599, 144403552893599
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 08 2003

Keywords

Crossrefs

Cf. A083796, A083797, A083798, A083799, A083801, A083802.

Extensions

Corrected and extended by Max Alekseyev, Nov 04 2015
Showing 1-7 of 7 results.

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