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A(p)/2/p^2 where p runs through the odd primes different from 7 and A(k) is the k-th central heptanomial coefficient (A025012).
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%I #6 Mar 30 2012 18:39:21

%S 2,29,484398,15667221,19291710979,716525463939,1068605567805152,

%T 70525663815429108660,2926081151105727289330,

%U 221376944251520543756333062

%N A(p)/2/p^2 where p runs through the odd primes different from 7 and A(k) is the k-th central heptanomial coefficient (A025012).

%K nonn

%O 1,1

%A _Benoit Cloitre_, Oct 19 2003