The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A139313 Primes prime(n) such that -prime(n-1)+3prime(n)-3prime(n+1)+prime(n+2)=0. 1
 19, 37, 43, 67, 83, 229, 257, 277, 349, 353, 383, 443, 479, 571, 613, 643, 677, 683, 719, 751, 1033, 1093, 1279, 1297, 1429, 1433, 1489, 1553, 1609, 1621, 1663, 1733, 1747, 1783, 1867, 1987, 1993, 2053, 2137, 2207, 2377, 2467, 2503, 2579, 2683, 2689, 2693 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS If A006562 is when -Prime[ -1 + n] + 2 Prime[n] - Prime[1 + n] = 0; then this "Integer differential" is the next higher order. LINKS Table of n, a(n) for n=1..47. FORMULA a(n)=A000040(1+A064149(n)). - R. J. Mathar, Jun 10 2008 MATHEMATICA Flatten[Table[If[ -Prime[ -1 +n] + 3*Prime[n] - 3*Prime[1 + n] + Prime[n + 2] == 0, Prime[n], {}], {n, 2, 500}]] Select[Partition[Prime[Range[500]], 4, 1], 3#[[2]]+#[[4]]==#[[1]]+3#[[3]]&][[All, 2]](* Harvey P. Dale, Jul 09 2018 *) CROSSREFS Cf. A006562. Sequence in context: A059695 A134196 A217045 * A272205 A347371 A332756 Adjacent sequences: A139310 A139311 A139312 * A139314 A139315 A139316 KEYWORD nonn AUTHOR Roger L. Bagula, Jun 07 2008 EXTENSIONS Edited by N. J. A. Sloane, Jul 01 2008 Definition corrected by Harvey P. Dale, Jul 09 2018 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified February 21 12:33 EST 2024. Contains 370235 sequences. (Running on oeis4.)