A082155 Dispersion of the complement of row 1 of A082154.

1, 6, 2, 15, 8, 3, 28, 18, 10, 4, 45, 32, 21, 12, 5, 66, 50, 36, 24, 14, 7, 91, 72, 55, 40, 27, 17, 9, 120, 98, 78, 60, 44, 31, 20, 11, 153, 128, 105, 84, 65, 49, 35, 23, 13, 190, 162, 136, 112, 90, 71, 54, 39, 26, 16, 231, 200, 171, 144, 119, 97, 77, 59, 43, 30, 19, 276

Offset

1,2

Comments

Rectangular array read by antidiagonals; a permutation of the natural numbers. (Dispersion of complement of column 1 of A082155) = (Transpose of A082154).

Links

Table of n, a(n) for n=1..67.

C. Kimberling, Interspersions and Dispersions.

C. Kimberling, Interspersions and dispersions, Proceedings of the American Mathematical Society, 117 (1993) 313-321.

Clark Kimberling and John E. Brown, Partial Complements and Transposable Dispersions, J. Integer Seqs., Vol. 7, 2004.

Example

Northwest corner:
1 6 15 28 45
2 8 18 32 50
3 10 21 36 55
4 12 24 40 60
5 14 27 44 65

Crossrefs

Cf. A082154, A000384.

Sequence in context: A116420 A069268 A348060 * A128225 A136398 A228692

Adjacent sequences: A082152 A082153 A082154 * A082156 A082157 A082158

Keyword

nonn,tabl

Author

Clark Kimberling, Apr 05 2003

Status

approved