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A074164 Smallest k such that R(k) > n*k, where R(k) is the digit reversal of k (A004086) (the reversal of 10 is taken to be 01 = 1, etc.). 2
12, 13, 15, 17, 106, 107, 108, 109, 1099 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
As R(k) doesn't increase the number of digits, R(k)<10k and so the sequence is complete. - Sascha Kurz, Jan 15 2003
LINKS
EXAMPLE
a(3) = 15, 51 > 3*15, a(3) is not 14 as 41 < 42 = 3*14. a(12) = 430 > 12*34.
a(4) = 17 as 71 > 17*4 but 61 is < 16*4.
MAPLE
P := proc(Nlo, Nhi, Klo, Khi) local A::list, k, n, d, s; d := (X::posint)->convert(X, base, 10):s := (L::list)->sum(L[i]*10^(nops(L)-i), i=1..nops(L)):k := Klo:A := [seq(0, i=1..Nhi-Nlo+1)]: for n from Nlo to Nhi do while k<Khi and s(d(k))<=n*k do k := k+1 od: A[n-Nlo+1] := k; od: return A; end proc; # Francois Jooste (phukraut(AT)hotmail.com), Oct 23 2002
CROSSREFS
Cf. A074163.
Sequence in context: A179512 A125664 A262210 * A076085 A039790 A242912
KEYWORD
base,nonn,fini,full
AUTHOR
Amarnath Murthy, Aug 30 2002
EXTENSIONS
Edited by Sascha Kurz, Jan 15 2003
Edited by N. J. A. Sloane at the suggestion of Andrew S. Plewe, May 21 2007
STATUS
approved

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Last modified July 25 14:28 EDT 2024. Contains 374609 sequences. (Running on oeis4.)