The On-Line Encyclopedia of Integer Sequences® (OEIS®)

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The On-Line Encyclopedia of Integer Sequences® (OEIS®)

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Revision History for A059479

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Showing entries 1-10 | older changes

A059479

Number of 3 X 3 matrices with elements from {0,...,n-1} such that the middle element of each of the eight lines of three (rows, columns and diagonals) is the square (mod n) of the difference of the end elements.
(history; published version)

#30 by Joerg Arndt at Thu Nov 03 05:44:24 EDT 2022

STATUS

reviewed

approved

#29 by Michel Marcus at Thu Nov 03 03:47:35 EDT 2022

STATUS

proposed

reviewed

#28 by Amiram Eldar at Thu Nov 03 03:38:19 EDT 2022

STATUS

editing

proposed

#27 by Amiram Eldar at Thu Nov 03 03:33:51 EDT 2022

	COMMENTS	`Multiplicative with a(p^e) = p^(3e - (e % 2)). - Mitch Harris, Jun 09 2005`
	FORMULA	`Multiplicative with a(p^e) = p^(3e - (e % 2)). - Mitch Harris, Jun 09 2005`

#26 by Amiram Eldar at Thu Nov 03 03:33:24 EDT 2022

FORMULA

Sum_{n>=1} 1/a(n) = 15*zeta(6)/Pi^2 = A082020 * A013664 = 1.546176... . - Amiram Eldar, Nov 03 2022

CROSSREFS

Cf. A008833, A013664, A082020.

STATUS

approved

editing

#25 by Bruno Berselli at Wed Sep 16 05:05:10 EDT 2020

STATUS

proposed

approved

#24 by Vaclav Kotesovec at Wed Sep 16 03:10:32 EDT 2020

STATUS

editing

proposed

#23 by Vaclav Kotesovec at Wed Sep 16 03:10:20 EDT 2020

FORMULA

Sum_{k=1..n} a(k) ~ zeta(3/2) * n^(7/2) / (7*zeta(3)). - Vaclav Kotesovec, Sep 16 2020

STATUS

proposed

editing

#22 by Michel Marcus at Wed Sep 16 02:05:29 EDT 2020

STATUS

editing

proposed

#21 by Michel Marcus at Wed Sep 16 02:05:25 EDT 2020

CROSSREFS

Cf. A008833.

STATUS

proposed

editing

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Last modified September 7 09:43 EDT 2024. Contains 375730 sequences. (Running on oeis4.)