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a(n) = prime(n)!/9 + 1.
16

%I #7 Aug 22 2020 13:39:55

%S 561,4435201,691891201,39520825344001,13516122267648001,

%T 2872446304320552960001,982417999304411328282624000001,

%U 913648739353102535302840320000001

%N a(n) = prime(n)!/9 + 1.

%t Table[(Prime[n]! + 9)/9, {n, 4, 30}]

%t Prime[Range[4,12]]!/9+1 (* _Harvey P. Dale_, Aug 22 2020 *)

%Y Cf. A082672, A089085, A089130, A117141, A007749, A139056-A139066, A020458, A139068, A137390, A139070-A139075, A136019, A136020, A136026, A136027, A139089-A139092.

%K nonn

%O 4,1

%A _Artur Jasinski_, Apr 08 2008