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 A077311 a(n) = A077310(n)/n. 3
 2, 17, 15, 14, 135782, 13, 1272873030448788, 1137639, 112346812683513, 1112131415161718192, 1102855923792562911, 109512634765160, 1088585937070785555634040482525331010179495 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..13. MAPLE A055642 := proc(n) floor(log[10](n))+1 ; end : icat := proc(istrt, iend) local resul, i ; resul := istrt ; for i from istrt+1 to iend do resul := 10^A055642(i)*resul+i ; od ; RETURN(resul) ; end: A077310 := proc(n) local istrt, iend ; istrt := n+1 ; iend := n+1 ; while icat(istrt, iend) mod n <> 0 do iend := iend+1 ; od ; RETURN( icat(istrt, iend)) : end: A077311 := proc(n) A077310(n)/n ; end: for n from 1 to 20 do printf("%d, ", A077311(n)) ; od ; # R. J. Mathar, Apr 01 2007 CROSSREFS Cf. A077310, A077312. Sequence in context: A257466 A226291 A359437 * A196732 A346391 A153652 Adjacent sequences: A077308 A077309 A077310 * A077312 A077313 A077314 KEYWORD base,nonn AUTHOR Amarnath Murthy, Nov 03 2002 EXTENSIONS More terms from R. J. Mathar, Apr 01 2007 STATUS approved

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Last modified December 5 23:11 EST 2023. Contains 367594 sequences. (Running on oeis4.)