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A173578 a(n) = a(n-1) + A073053(a(n-1)). 1
1, 12, 124, 337, 370, 493, 616, 829, 1042, 1356, 1490, 1714, 1848, 2162, 2476, 2790, 3014, 3238, 3462, 3776, 3910, 4044, 4448, 4852, 5166, 5390, 5524, 5748, 5972, 6106, 6420, 6824, 7228, 7542, 7766, 7990, 8124, 8438, 8752, 8976, 9200, 9514, 9648, 9962 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A073053 sequence is operator DENEAT: concatenate number of even digits in n, number of odd digits and total number of digits.

LINKS

Table of n, a(n) for n=1..44.

FORMULA

a(n) = a(n-1)+ A073053(a(n-1)).

MAPLE

A173578 := proc(n)

    option remember;

    if n = 1 then

        1;

    else

        procname(n-1)+A073053(procname(n-1)) ;

    end if;

end proc:

seq(A173578(n), n=1..20) ; # R. J. Mathar, Jul 13 2012

CROSSREFS

Sequence in context: A061088 A176556 A175252 * A291065 A273586 A125424

Adjacent sequences:  A173575 A173576 A173577 * A173579 A173580 A173581

KEYWORD

easy,nonn,base

AUTHOR

Paolo P. Lava & Giorgio Balzarotti, Mar 05 2010

STATUS

approved

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Last modified March 24 06:56 EDT 2019. Contains 321444 sequences. (Running on oeis4.)