The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A060797

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A060797

Integer part of square root of n-th primorial, A002110(n).
(history; published version)

#36 by Harvey P. Dale at Wed Nov 22 12:31:14 EST 2023

STATUS

editing

approved

#35 by Harvey P. Dale at Wed Nov 22 12:31:11 EST 2023

MATHEMATICA

Join[{1}, Floor[Sqrt[#]]&/@FoldList[Times, Prime[Range[30]]]] (* Harvey P. Dale, Nov 22 2023 *)

STATUS

approved

editing

#34 by Michael De Vlieger at Sun Sep 11 10:31:17 EDT 2022

STATUS

proposed

approved

#33 by Jon E. Schoenfield at Sun Sep 11 10:29:25 EDT 2022

STATUS

editing

proposed

#32 by Jon E. Schoenfield at Sun Sep 11 10:29:22 EDT 2022

EXAMPLE

(In general, x=A002110(n) has always has 2^n divisors, and A000196(x) always lies between the k-th and (k+1)-th divisors of x, where k=ceiling(tau(x)/2) and tau(x) is the number of divisors of x.) - M. F. Hasler, Sep 02 2012

STATUS

approved

editing

#31 by Michel Marcus at Sun Apr 25 12:19:55 EDT 2021

STATUS

reviewed

approved

#30 by Joerg Arndt at Sun Apr 25 12:16:27 EDT 2021

STATUS

proposed

reviewed

#29 by Soumyadeep Dhar at Sun Apr 25 10:56:19 EDT 2021

STATUS

editing

proposed

Discussion

Sun Apr 25

12:16

Joerg Arndt: Looks good, thanks!

#28 by Soumyadeep Dhar at Sun Apr 25 10:49:50 EDT 2021

LINKS

Soumyadeep Dhar, <a href="/A060797/b060797.txt">Table of n, a(n) for n = 0..632</a>

STATUS

approved

editing

Discussion

Sun Apr 25

10:56

Soumyadeep Dhar: Added entries so that (A060797(n))^2 ≤ A002110(n) < (A060797(n)+1)^2. Entries limited to max 1000 digits only in bfile (632). 633 entry has 1002 digits so not included in the bfile file. Please check and approve if you find it useful.

#27 by Bruno Berselli at Tue Jul 10 04:13:15 EDT 2018

STATUS

reviewed

approved