A048212 -id:A048212 - cp's OEIS frontend

A048216 a(n) = T(n,n), where array T is given by A048212.

2, 3, 7, 13, 21, 30, 42, 57, 73, 93, 115, 139, 164, 190, 222, 255, 289, 326, 364, 405, 450, 497, 545, 598, 654, 713, 774, 836, 900, 968, 1037, 1111, 1187, 1264, 1342, 1423, 1507, 1594, 1682, 1771, 1867, 1965, 2065, 2168, 2273, 2379

Offset: 1

Clark Kimberling

nonn

a(1) = 2, a(2) = 3 and a(i) is the next smallest number greater than a(i-1) such that a(i) - a(j) is not a(1) or a(m) or a(m) - a(n) with 1 <= j < i, 1 <= n < m < i. - Ben Paul Thurston, Feb 18 2019

Cf. A004979, A048212.

a(n) = A004979(n + 1) - 1. - Sean A. Irvine, Jun 05 2021

A048217 a(n)=T(n+1,n), array T given by A048212.

Original entry on oeis.org

1, 5, 11, 19, 28, 40, 55, 71, 91, 113, 137, 162, 188, 220, 253, 287, 324, 362, 403, 448, 495, 543, 596, 652, 711, 772, 834, 898, 966, 1035, 1109, 1185, 1262, 1340, 1421, 1505, 1592, 1680, 1769, 1865, 1963, 2063, 2166, 2271, 2377

Offset: 1

Clark Kimberling

nonn

Cf. A004979.

a(n) = A004979(n + 2) - 3. - Sean A. Irvine, Jun 05 2021

A048222 a(n)=Sum{T(n,j): j=1,2,...,n}, array T given by A048212.

Original entry on oeis.org

2, 4, 16, 40, 80, 134, 218, 338, 482, 682, 924, 1212, 1537, 1901, 2381, 2909, 3487, 4153, 4875, 5695, 6640, 7674, 8778, 10050, 11450, 12984, 14631, 16367, 18223, 20263, 22402, 24770, 27278, 29896, 32626, 35542, 38650, 41956

Offset: 1

Clark Kimberling

nonn

A048213 a(n)=T(n,1), array T given by A048212.

Original entry on oeis.org

2, 1, 4, 6, 8, 9, 12, 15, 16, 20, 22, 24, 25, 26, 32, 33, 34, 37, 38, 41, 45, 47, 48, 53, 56, 59, 61, 62, 64, 68, 69, 74, 76, 77, 78, 81, 84, 87, 88, 89, 96, 98, 100, 103, 105, 106, 110, 111, 114, 119, 121, 127, 128, 130, 131, 135, 138

Offset: 1

Clark Kimberling

nonn

A048214 a(n)=T(n,2), array T given by A048212.

Original entry on oeis.org

3, 5, 10, 14, 17, 21, 27, 31, 36, 42, 46, 49, 51, 58, 65, 67, 71, 75, 79, 86, 92, 95, 101, 109, 115, 120, 123, 126, 132, 137, 143, 150, 153, 155, 159, 165, 171, 175, 177, 185, 194, 198, 203, 208, 211, 216, 221, 225, 233, 240, 248, 255

Offset: 2

Clark Kimberling

nonn

A048215 a(n)=T(n,3), array T given by A048212.

Original entry on oeis.org

7, 11, 18, 23, 29, 36, 43, 51, 58, 66, 71, 75, 83, 91, 99, 104, 109, 116, 124, 133, 140, 148, 157, 168, 176, 182, 187, 194, 201, 211, 219, 227, 231, 236, 243, 252, 259, 264, 273, 283, 294, 301, 308, 314, 321, 327, 335, 344, 354

Offset: 3

Clark Kimberling

nonn

A048218 a(n)=T(n+2,n), array T given by A048212.

Original entry on oeis.org

4, 10, 18, 27, 39, 54, 70, 90, 112, 136, 161, 187, 219, 252, 286, 323, 361, 402, 447, 494, 542, 595, 651, 710, 771, 833, 897, 965, 1034, 1108, 1184, 1261, 1339, 1420, 1504, 1591, 1679, 1768, 1864, 1962, 2062, 2165, 2270, 2376

Offset: 1

Clark Kimberling

nonn

Cf. A004979.

a(n) = A004979(n + 3) - 4. - Sean A. Irvine, Jun 05 2021

A048219 a(n)=least m such that row m of T contains n, array T given by A048212.

Original entry on oeis.org

2, 1, 2, 3, 3, 4, 3, 5, 6, 4, 4, 7, 4, 5, 8, 9, 6, 5, 5, 10, 5, 11, 6, 12, 13, 14, 6, 6, 7, 6, 9, 15, 16, 17, 7, 8, 18, 19, 7, 7, 20, 7, 9, 8, 21, 12, 22, 23, 13, 8, 10, 9, 24, 8, 8, 25, 8, 11, 26, 9, 27, 28, 10, 29, 16, 9, 17, 30, 31, 9, 9, 10, 9, 32, 14

Offset: 1

Clark Kimberling

nonn

A048220 a(n)=least m such that column m of T contains n, array T given by A048212.

Original entry on oeis.org

1, 1, 2, 1, 2, 1, 3, 1, 1, 2, 3, 1, 4, 2, 1, 1, 2, 3, 4, 1, 5, 1, 3, 1, 1, 1, 4, 5, 3, 6, 2, 1, 1, 1, 4, 3, 1, 1, 5, 6, 1, 7, 3, 4, 1, 2, 1, 1, 2, 5, 3, 4, 1, 6, 7, 1, 8, 3, 1, 5, 1, 1, 4, 1, 2, 6, 2, 1, 1, 7, 8, 5, 9, 1, 3, 1, 1, 1, 2, 6, 1, 4, 3, 1, 5, 7, 1, 1, 1, 8

Offset: 1

Clark Kimberling

nonn

A048221 a(n)=T(2n-1,n), array T given by A048212.

Original entry on oeis.org

2, 5, 18, 35, 60, 94, 134, 180, 232, 291, 357, 430, 515, 610, 710, 815, 932, 1053, 1181, 1318, 1462, 1615, 1776, 1944, 2116, 2300, 2496, 2696, 2907, 3128, 3351, 3581, 3817, 4062, 4318, 4582, 4852, 5131, 5419, 5719, 6031, 6346, 6665, 6991, 7323, 7665, 8015

Offset: 1

Clark Kimberling

nonn

Cf. A004979.

a(n) = A004979(2*n) - A004979(n). - Sean A. Irvine, Jun 05 2021

More terms from Sean A. Irvine, Jun 05 2021

cp's OEIS Frontend

A048216 a(n) = T(n,n), where array T is given by A048212.

Views

Author

Keywords

Comments

Crossrefs

Formula

A048217 a(n)=T(n+1,n), array T given by A048212.

Views

Author

Keywords

Crossrefs

Formula

A048222 a(n)=Sum{T(n,j): j=1,2,...,n}, array T given by A048212.

Views

Author

Keywords

A048213 a(n)=T(n,1), array T given by A048212.

Views

Author

Keywords

A048214 a(n)=T(n,2), array T given by A048212.

Views

Author

Keywords

A048215 a(n)=T(n,3), array T given by A048212.

Views

Author

Keywords

A048218 a(n)=T(n+2,n), array T given by A048212.

Views

Author

Keywords

Crossrefs

Formula

A048219 a(n)=least m such that row m of T contains n, array T given by A048212.

Views

Author

Keywords

A048220 a(n)=least m such that column m of T contains n, array T given by A048212.

Views

Author

Keywords

A048221 a(n)=T(2n-1,n), array T given by A048212.

Views

Author

Keywords

Crossrefs

Formula

Extensions