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a(n)=1/60*(A000364(n+2)-A000364(n)).
0

%I #5 Mar 30 2012 18:39:16

%S 1,23,841,45023,3321841,323146823,40078005241,6172529945423,

%T 1155774491891041,258569396539480823,68116719340312179241,

%U 20870735447824438473023,7358996769608563523829841

%N a(n)=1/60*(A000364(n+2)-A000364(n)).

%Y Cf. A000364, A060075.

%K nonn

%O 1,2

%A _Benoit Cloitre_, Apr 06 2003