The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A257113 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A257113

a(1) = 2, a(2) = 3; thereafter a(n) is the sum of all the previous terms.
(history; published version)

#59 by R. J. Mathar at Tue Jul 18 09:22:24 EDT 2023

STATUS

editing

approved

#58 by R. J. Mathar at Tue Jul 18 09:22:17 EDT 2023

CROSSREFS

Cf. A000079, A020714, A084215.

KEYWORD

nonn,easy,less

STATUS

approved

editing

#57 by N. J. A. Sloane at Wed Mar 30 21:41:30 EDT 2022

STATUS

proposed

approved

#56 by Jon E. Schoenfield at Wed Mar 30 20:47:39 EDT 2022

STATUS

editing

proposed

Discussion

Wed Mar 30

20:56

Alan Michael Gómez Calderón: No, I only saying that my ceil func gave a complete formula for the sequence. I believe its important to modified the existed one or to add mine, because someone could be helped this.

#55 by Jon E. Schoenfield at Wed Mar 30 20:46:37 EDT 2022

PROG

(MAGMAMagma) [2, 3] cat [5*2^n: n in [0..35]]; // Vincenzo Librandi, May 15 2015

STATUS

proposed

editing

Discussion

Wed Mar 30

20:47

Jon E. Schoenfield: Are you saying that all the entries in the Formula section are wrong?  Or that one or two of them are wrong?

#54 by Alan Michael Gómez Calderón at Wed Mar 30 11:51:38 EDT 2022

STATUS

editing

proposed

Discussion

Wed Mar 30

18:33

Kevin Ryde: You're very similar to Altug Alkan.  I think the existing is enough.

18:46

Alan Michael Gómez Calderón: ok, but you don't have the correct formula right now.

#53 by Alan Michael Gómez Calderón at Wed Mar 30 11:51:32 EDT 2022

PROG

(PARI) a(n) = ceil(5*2^(n-3)) \\ Alan Michael Gómez Calderón, Mar 30 2022

STATUS

approved

editing

#52 by OEIS Server at Sat Nov 17 13:13:09 EST 2018

LINKS

Colin Barker, <a href="/A257113/b257113_1.txt">Table of n, a(n) for n = 1..1000</a>

#51 by Andrew Howroyd at Sat Nov 17 13:13:09 EST 2018

STATUS

reviewed

approved

Discussion

Sat Nov 17

13:13

OEIS Server: Installed new b-file as b257113.txt.  Old b-file is now b257113_1.txt.

#50 by Michel Marcus at Sat Nov 17 05:33:37 EST 2018

STATUS

proposed

reviewed