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A137464 Concatenation of n and a list of the divisors of n. 1
11, 212, 313, 4124, 515, 61236, 717, 81248, 9139, 1012510, 11111, 121234612, 13113, 1412714, 1513515, 16124816, 17117, 181236918, 19119, 2012451020, 2113721, 22121122, 23123, 241234681224, 251525, 26121326, 2713927, 2812471428, 29129 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..29.

EXAMPLE

a(12), divisors of 12 are 1,2,3,4,6,12, so a(12) = 121234612

MAPLE

cat2 := proc(a, b) a*10^max(ilog10(b)+1, 1)+b ; end: A137464 := proc(n) local a, d; a := n ; for d in sort(convert(numtheory[divisors](n), list)) do a := cat2(a, d) ; od: RETURN(a) ; end: seq(A137464(n), n=1..50) ; # R. J. Mathar, Apr 25 2008

CROSSREFS

Sequence in context: A088061 A070220 A134069 * A187650 A214687 A160074

Adjacent sequences:  A137461 A137462 A137463 * A137465 A137466 A137467

KEYWORD

easy,nonn,base,less

AUTHOR

Ctibor O. Zizka, Apr 19 2008

EXTENSIONS

Definition corrected by Omar E. Pol, Apr 21 2008

More terms from R. J. Mathar, Apr 25 2008

STATUS

approved

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Last modified March 22 04:32 EDT 2019. Contains 321406 sequences. (Running on oeis4.)