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A053065
Alternately append n-th prime to beginning or end of previous term.
2
2, 32, 325, 7325, 732511, 13732511, 1373251117, 191373251117, 19137325111723, 2919137325111723, 291913732511172331, 37291913732511172331, 3729191373251117233141, 433729191373251117233141, 43372919137325111723314147
OFFSET
1,1
REFERENCES
Felice Russo, A set of new Smarandache functions, sequences and conjectures in number theory, American Research Press 2000
MAPLE
read("transforms"):
A053065 := proc(n)
option remember;
if n = 1 then
2;
else
p := ithprime(n) ;
if type(n, 'even') then
digcat2(p, procname(n-1)) ;
else
digcat2(procname(n-1), p) ;
end if;
end if;
end proc:
seq(A053065(n), n=1..15) ; # R. J. Mathar, Sep 27 2013
CROSSREFS
Sequence in context: A203017 A079766 A224293 * A091707 A323639 A060868
KEYWORD
base,easy,nonn,less
AUTHOR
Felice Russo, Feb 25 2000
STATUS
approved