OFFSET
1,1
COMMENTS
A096265 is based on arithmetic mean or total distance to neighbors. But it doesn't say if it is isolated from them or close to one of them.
LINKS
Ken Takusagawa, Table of n, a(n) for n = 1..54
EXAMPLE
a(4) = 23 because the distance (geometric mean) to its neighbors (19 and 29) equals = sqrt(4*6) = 4.8989. No smaller prime is more isolated. The next more isolated prime a(5) is 53.
PROG
(PARI) lista(nn) = {d = 0; p = 1; q = 2; r = 3; for (i=1, nn, p = q; q = r; r = nextprime(r+1); if ((nd = (q-p)*(r-q)) > d, print1(q, ", "); d = nd; ); ); } \\ Michel Marcus, Jun 12 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
Alexis Monnerot-Dumaine (alexis.monnerotdumaine(AT)gmail.com), Jun 29 2006
EXTENSIONS
Offset corrected and a(22)-a(34) from Donovan Johnson, May 23 2010
STATUS
approved