A193245 -id:A193245 - cp's OEIS frontend

A024412 Ordered Stirling numbers s(n,k) of the second kind.

0, 1, 3, 6, 7, 10, 15, 21, 25, 28, 31, 36, 45, 55, 63, 65, 66, 78, 90, 91, 105, 120, 127, 136, 140, 153, 171, 190, 210, 231, 253, 255, 266, 276, 300, 301, 325, 350, 351, 378, 406, 435, 462, 465, 496, 511, 528, 561, 595, 630, 666, 703, 741, 750, 780, 820, 861, 903, 946, 966

Offset: 1

Clark Kimberling

nonn

In other words, list all Stirling numbers of the second kind, sort and remove duplicates.

David W. Wilson, Table of n, a(n) for n = 1..10001

Cf. A008277, A193245, A193246, A374796 (the positive duplicates).

s2 = Union[Flatten[Table[Table[StirlingS2[n, k], {k, 1, 100}], {n, 1, 100}]]]; Table[s2[[j]], {j, 1, 100}] (* Vaclav Kotesovec, Jan 01 2013 *)

Corrected by N. J. A. Sloane, Nov 21 2007

A193246 Ordered unsigned Stirling numbers |S1(n,k)|.

Original entry on oeis.org

0, 1, 2, 3, 6, 10, 11, 15, 21, 24, 28, 35, 36, 45, 50, 55, 66, 78, 85, 91, 105, 120, 136, 153, 171, 175, 190, 210, 225, 231, 253, 274, 276, 300, 322, 325, 351, 378, 406, 435, 465, 496, 528, 546, 561, 595, 630, 666, 703, 720, 735, 741, 780, 820, 861, 870, 903

Offset: 1

Vaclav Kotesovec, Jan 01 2013

nonn

List all unsigned Stirling numbers of the first kind, sort and remove duplicates.

The only numbers below 10^8 that appear in more than one place in the table A130534 are 1, 6, and 120. - Pontus von Brömssen, Jul 20 2024

Pontus von Brömssen, Table of n, a(n) for n = 1..10000

Cf. A193245, A024412, A130534.

s1 = Union[Flatten[Table[Table[Abs[StirlingS1[n, k]], {k, 1, 100}], {n, 1, 100}]]]; Table[s1[[j]], {j, 1, 100}]

cp's OEIS Frontend

A024412 Ordered Stirling numbers s(n,k) of the second kind.

Views

Author

Keywords

Comments

Links

Crossrefs

Programs

Mathematica

Extensions