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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

Felice Russo, A set of new Smarandache functions, sequences and conjectures in number theory, American Research Press 2000

LINKS

Table of n, a(n) for n=1..15.

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

Adjacent sequences:  A053062 A053063 A053064 * A053066 A053067 A053068

KEYWORD

base,easy,nonn,less

AUTHOR

Felice Russo, Feb 25 2000

STATUS

approved

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Last modified November 19 11:09 EST 2019. Contains 329319 sequences. (Running on oeis4.)