Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
The smallest term that is not multiple of 6 is 3472.
Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
(PARI) is(n)=my(s=sigma(n)); s>2*n+6 && isprime(s-n-1) && isprime(s-n-n-1) \\ Charles R Greathouse IV, Feb 19 2013
Subsequence of A175727.
Sequence in context: A214195 A091454 A175727 * A136152 A244066 A090815
Adjacent sequences: A179942 A179943 A179944 * A179946 A179947 A179948
Alexey Galkin (fetch91(AT)gmail.com), Aug 03 2010