Many excellent designs for a new banner were submitted. We will use the best of them in rotation.
1,2
Table of n, a(n) for n=1..13.
p(32550001)-32550001 = 236421376 = 592240896 = 156^4.
(PARI) isok(n) = ispower(prime(n) - n, 4); \\ Michel Marcus, Jan 22 2014
Subsequence of A064370 (gives a square).
Sequence in context: A135234 A199948 A225221 * A109119 A002495 A078457
Adjacent sequences: A114064 A114065 A114066 * A114068 A114069 A114070
nonn
Giovanni Resta, Feb 13 2006
approved