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Revision History for A274804

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A274804

The exponential transform of sigma(n).
(history; published version)

#33 by Joerg Arndt at Sat Jun 12 02:52:19 EDT 2021

STATUS

reviewed

approved

#32 by Michel Marcus at Fri Jun 11 23:43:53 EDT 2021

STATUS

proposed

reviewed

#31 by Tom Copeland at Fri Jun 11 20:19:03 EDT 2021

STATUS

editing

proposed

#30 by Tom Copeland at Fri Jun 11 20:17:51 EDT 2021

COMMENTS

An earlier version is A036040, a special case of the Faa di Bruno formula. These partition polynomials are known also as the complete Bell polynomials and are a refinement of the Stirling polynomials of the second kind. - Tom Copeland, Jun 11 2021

STATUS

proposed

editing

Discussion

Fri Jun 11

20:18

Tom Copeland: Removed edit. Applies to the example, but not really necessary to note here.

#29 by Tom Copeland at Fri Jun 11 03:40:38 EDT 2021

STATUS

editing

proposed

#28 by Tom Copeland at Fri Jun 11 03:16:40 EDT 2021

CROSSREFS

Cf. A036040, another version.

#27 by Tom Copeland at Fri Jun 11 03:13:53 EDT 2021

COMMENTS

STATUS

approved

editing

#26 by Vaclav Kotesovec at Tue Jun 08 11:21:23 EDT 2021

STATUS

editing

approved

#25 by Vaclav Kotesovec at Tue Jun 08 10:41:00 EDT 2021

MATHEMATICA

nmax = 20; CoefficientList[Series[Exp[Sum[DivisorSigma[1, k]*x^k/k!, {k, 1, nmax}]], {x, 0, nmax}], x] * Range[0, nmax]! (* Vaclav Kotesovec, Jun 08 2021 *)

STATUS

approved

editing

#24 by Jon E. Schoenfield at Sun Feb 09 15:44:24 EST 2020

STATUS

editing

approved