The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A062319 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A062319

Number of divisors of n^n, or of A000312(n).
(history; published version)

#54 by Harvey P. Dale at Thu Jun 06 19:16:12 EDT 2024

STATUS

editing

approved

#53 by Harvey P. Dale at Thu Jun 06 19:16:09 EDT 2024

MATHEMATICA

Join[{1}, DivisorSigma[0, #^#]&/@Range[60]] (* Harvey P. Dale, Jun 06 2024 *)

STATUS

approved

editing

#52 by Charles R Greathouse IV at Thu Sep 08 08:45:03 EDT 2022

PROG

(MAGMAMagma) [NumberOfDivisors(n^n): n in [0..60]]; // Vincenzo Librandi, Nov 09 2014

Discussion

Thu Sep 08

08:45

OEIS Server: https://oeis.org/edit/global/2944

#51 by Peter Luschny at Fri Jun 04 02:39:13 EDT 2021

STATUS

proposed

approved

#50 by Chai Wah Wu at Thu Jun 03 14:10:02 EDT 2021

STATUS

editing

proposed

#49 by Chai Wah Wu at Thu Jun 03 14:09:50 EDT 2021

PROG

(Python 3.8+)

from math import prod

from sympy import factorint

def A062319(n): return prod(n*d+1 for d in factorint(n).values()) # Chai Wah Wu, Jun 03 2021

STATUS

approved

editing

#48 by OEIS Server at Thu May 13 01:34:36 EDT 2021

LINKS

Seiichi Manyama, <a href="/A062319/b062319_1.txt">Table of n, a(n) for n = 0..10000</a> (terms 0..1000 from Harry J. Smith)

#47 by Michel Marcus at Thu May 13 01:34:36 EDT 2021

STATUS

reviewed

approved

Discussion

Thu May 13

01:34

OEIS Server: Installed new b-file as b062319.txt.  Old b-file is now b062319_1.txt.

#46 by Joerg Arndt at Thu May 13 01:20:00 EDT 2021

STATUS

proposed

reviewed

#45 by Jon E. Schoenfield at Wed May 12 21:24:14 EDT 2021

STATUS

editing

proposed