OFFSET
1,1
COMMENTS
Primes that are leaves in the tree defined by edge relation parent = A255131(child), "the least squares beanstalk".
Primes p such that (A002828(1+p) <> 1), (A002828(2+p) <> 2), (A002828(3+p) <> 3) and (A002828(4+p) <> 4).
See comments in A278495 which gives the count of these primes in each range [n^2, (n+1)^2].
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..10000
PROG
(Scheme, with Antti Karttunen's IntSeq-library)
KEYWORD
nonn
AUTHOR
Antti Karttunen, Nov 25 2016, with additional comments Nov 28 2016
STATUS
approved