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Let f(n)=mod(prime(n),12); then a(n) = binomial(prime(12),f(n)).
1

%I #8 Mar 31 2012 20:35:48

%S 666,7770,435897,10295472,854992152,37,435897,10295472,854992152,

%T 435897,10295472,37,435897,10295472,854992152,435897,854992152,37,

%U 10295472,854992152,37,10295472,854992152,435897,37,435897,10295472,854992152,37

%N Let f(n)=mod(prime(n),12); then a(n) = binomial(prime(12),f(n)).

%C A type of cycling model for sequence based on the Mealy model for sequential machines: the function f is the memory element as a mapping and the binomial is the combinatorial part. It is called a Meally machine. Other mapping functions can be used in this general model for an n-symbol cycle.

%D Taylor L. Booth, Sequential Machines and Automata Theory, John Wiley and Sons, Inc, 1967, see page 70.

%t digits = 12 f[n_] = Mod[Prime[n], digits] a = Table[Binomial[Prime[digits], f[n]], {n, 1, 16*digits}]

%K nonn

%O 1,1

%A _Roger L. Bagula_, Mar 11 2005

%E Edited and corrected by _N. J. A. Sloane_, Mar 09 2008