The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A002452 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A002452

a(n) = (9^n - 1)/8.
(history; published version)

#173 by Michael De Vlieger at Fri Oct 04 11:23:45 EDT 2024

STATUS

reviewed

approved

#172 by Michel Marcus at Fri Oct 04 11:18:43 EDT 2024

STATUS

proposed

reviewed

#171 by Michael De Vlieger at Fri Oct 04 10:16:42 EDT 2024

STATUS

editing

proposed

#170 by Michael De Vlieger at Fri Oct 04 10:16:39 EDT 2024

LINKS

Carlos M. da Fonseca and Anthony G. Shannon, <a href="https://doi.org/10.7546/nntdm.2024.30.3.491-498">A formal operator involving Fermatian numbers</a>, Notes Num. Theor. Disc. Math. (2024) Vol. 30, No. 3, 491-498. See pp. 2-3.

STATUS

proposed

editing

#169 by Michael De Vlieger at Fri Oct 04 10:08:13 EDT 2024

STATUS

editing

proposed

#168 by Michael De Vlieger at Fri Oct 04 10:08:09 EDT 2024

LINKS

STATUS

approved

editing

#167 by Michel Marcus at Mon Mar 13 07:07:57 EDT 2023

STATUS

reviewed

approved

#166 by Joerg Arndt at Mon Mar 13 06:54:14 EDT 2023

STATUS

proposed

reviewed

#165 by Stefano Spezia at Mon Mar 13 05:33:18 EDT 2023

STATUS

editing

proposed

#164 by Stefano Spezia at Mon Mar 13 05:30:55 EDT 2023

FORMULA

E.g.f.: Sum_{n>0} a(n)*(-1)^(n+1)*x^(2*n+1)/(2*n+1)! = (1/6)*sin(x)^3. - Vladimir Kruchinin, Sep 30 2012

STATUS

proposed

editing

Discussion

Mon Mar 13

05:33

Stefano Spezia: Removed as I initially did: edit #156