The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A140511 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A140511

a(n) = (prime(n)^2 + prime(n+1))/2.
(history; published version)

#14 by Michael De Vlieger at Sat Mar 25 08:20:28 EDT 2023

STATUS

reviewed

approved

#13 by Michel Marcus at Sat Mar 25 02:41:22 EDT 2023

STATUS

proposed

reviewed

#12 by Alois P. Heinz at Fri Mar 24 18:32:06 EDT 2023

STATUS

editing

proposed

#11 by Alois P. Heinz at Fri Mar 24 18:31:59 EDT 2023

NAME

a(n) = ((prime(n))^2 + prime(n+1))/2.

FORMULA

a(n) = (A001248(n) + A000040(n+1))/2 for n >= 2. - Elmo R. Oliveira, Mar 24 2023

CROSSREFS

Cf. A000040, A001248.

STATUS

proposed

editing

#10 by Elmo R. Oliveira at Fri Mar 24 18:17:06 EDT 2023

STATUS

editing

proposed

#9 by Elmo R. Oliveira at Fri Mar 24 18:14:12 EDT 2023

FORMULA

a(n) = (A001248(n) + A000040 (n+1))/2 for n >= 2. - Elmo R. Oliveira, Mar 24 2023

#8 by Elmo R. Oliveira at Fri Mar 24 18:13:44 EDT 2023

FORMULA

a(n) = (A001248(n) + A000040 (n+1))/2 for n >= 2. - Elmo R. Oliveira, Mar 24 2023

CROSSREFS

A000040, A001248.

STATUS

approved

editing

#7 by N. J. A. Sloane at Thu Feb 23 22:36:54 EST 2017

STATUS

proposed

approved

#6 by G. C. Greubel at Thu Feb 23 22:30:44 EST 2017

STATUS

editing

proposed

#5 by G. C. Greubel at Thu Feb 23 22:30:36 EST 2017

NAME

a(n) = ((prime(n))^2 + prime(n+1))/2.

LINKS

G. C. Greubel, <a href="/A140511/b140511.txt">Table of n, a(n) for n = 2..1000</a>

PROG

(PARI) for(n=2, 50, print1(((prime(n))^2 + prime(n+1))/2, ", ")) \\ G. C. Greubel, Feb 23 2017

STATUS

approved

editing