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 10 results.

A049724 a(n) = Sum_{i=0..n} T(i,n-i), array T as in A049723.

Original entry on oeis.org

1, 8, 24, 62, 117, 210, 339, 498, 708, 1002, 1328, 1730, 2185, 2752, 3404, 4140, 4958, 5902, 6947, 8136, 9423, 10826, 12406, 14114, 15919, 17948, 20141, 22494, 24970, 27670, 30548, 33624, 36847, 40442, 44095, 47946
Offset: 0

Views

Author

Clark Kimberling

Keywords

A049725 a(n) = Sum_{i=0..2n} (-1)^i * T(i,2n-i), array T as in A049723.

Original entry on oeis.org

1, 12, 29, 69, 116, 192, 229, 324, 418, 533, 695, 818, 923, 1099, 1258, 1520, 1687, 1893, 2044, 2315, 2567, 2890, 3090, 3377, 3604, 4062, 4397, 4659, 5066, 5384, 5697, 6172, 6536, 7013, 7293, 7894, 8219, 8819, 9180, 9880
Offset: 0

Views

Author

Clark Kimberling

Keywords

Extensions

Name corrected by Sean A. Irvine, Aug 06 2021

A049726 a(n) = Sum_{i=0..floor(n/2)} T(2i,n-2i), array T as in A049723.

Original entry on oeis.org

1, 4, 18, 31, 73, 105, 204, 249, 412, 501, 760, 865, 1207, 1376, 1864, 2070, 2688, 2951, 3740, 4068, 5059, 5413, 6612, 7057, 8421, 8974, 10620, 11247, 13114, 13835, 16034, 16812, 19267, 20221, 22994, 23973, 27092, 28240
Offset: 0

Views

Author

Clark Kimberling

Keywords

A049728 a(n)=T(n,n), array T as in A049723.

Original entry on oeis.org

1, 6, 15, 35, 56, 88, 121, 162, 214, 267, 331, 396, 461, 553, 634, 734, 827, 931, 1040, 1153, 1289, 1414, 1554, 1691, 1832, 2004, 2161, 2329, 2502, 2678, 2867, 3056, 3264, 3469, 3681, 3902, 4107, 4351, 4584, 4840, 5081, 5330
Offset: 0

Views

Author

Clark Kimberling

Keywords

A049729 a(n)=T(n,n+1), array T as in A049723.

Original entry on oeis.org

4, 13, 26, 46, 75, 104, 148, 189, 241, 302, 363, 439, 508, 596, 681, 774, 886, 991, 1107, 1224, 1344, 1489, 1622, 1778, 1919, 2083, 2248, 2409, 2605, 2774, 2970, 3163, 3356, 3572, 3785, 4009, 4246, 4474, 4719, 4948, 5220, 5477
Offset: 0

Views

Author

Clark Kimberling

Keywords

A049730 a(n)=T(n,n+2), array T as in A049723.

Original entry on oeis.org

9, 22, 39, 60, 92, 129, 169, 222, 271, 335, 400, 476, 561, 638, 738, 831, 939, 1052, 1157, 1297, 1422, 1562, 1699, 1840, 2008, 2165, 2337, 2510, 2682, 2879, 3064, 3276, 3477, 3693, 3906, 4115, 4359, 4596, 4844, 5085, 5337
Offset: 0

Views

Author

Clark Kimberling

Keywords

A049731 a(n)=T(n,n+3), array T as in A049723.

Original entry on oeis.org

18, 33, 54, 79, 115, 152, 197, 253, 310, 370, 443, 516, 600, 697, 789, 894, 995, 1115, 1232, 1360, 1497, 1626, 1786, 1931, 2091, 2252, 2421, 2609, 2786, 2982, 3171, 3367, 3584, 3797, 4029, 4254, 4478, 4723, 4960, 5232, 5481
Offset: 0

Views

Author

Clark Kimberling

Keywords

A049732 a(n)=T(n,1), array T as in A049723.

Original entry on oeis.org

4, 6, 13, 22, 33, 50, 67, 88, 115, 140, 173, 204, 241, 286, 325, 374, 419, 476, 535, 588, 653, 716, 789, 858, 925, 1010, 1091, 1180, 1263, 1348, 1449, 1540, 1649, 1746, 1855, 1966, 2067, 2192, 2307, 2432, 2557, 2678, 2813, 2950
Offset: 0

Views

Author

Clark Kimberling

Keywords

A049733 a(n)=T(n,2), array T as in A049723.

Original entry on oeis.org

9, 13, 15, 26, 39, 54, 71, 96, 119, 148, 177, 212, 249, 290, 331, 378, 427, 484, 539, 596, 657, 724, 793, 866, 939, 1022, 1099, 1184, 1267, 1360, 1453, 1552, 1653, 1750, 1863, 1970, 2079, 2196, 2311, 2444, 2565, 2690, 2821, 2958
Offset: 0

Views

Author

Clark Kimberling

Keywords

A049734 a(n)=T(n,3), array T as in A049723.

Original entry on oeis.org

18, 22, 26, 35, 46, 60, 79, 100, 125, 156, 185, 222, 257, 294, 343, 390, 439, 492, 543, 608, 665, 734, 805, 870, 951, 1026, 1107, 1188, 1275, 1376, 1465, 1562, 1657, 1762, 1871, 1978, 2091, 2208, 2327, 2452, 2569, 2702, 2833
Offset: 0

Views

Author

Clark Kimberling

Keywords

Showing 1-10 of 10 results.

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

Content is available under The OEIS End-User License Agreement.