

A072485


nth number that includes the substring [n] in its decimal expansion.


2



1, 12, 23, 34, 45, 56, 67, 78, 89, 108, 119, 129, 213, 314, 415, 516, 617, 718, 819, 920, 1021, 1220, 1223, 1240, 1251, 1262, 1273, 1284, 1295, 1306, 1317, 1328, 1433, 1349, 1435, 1536, 1637, 1738, 1839, 1940, 2041, 2142, 2243, 2441, 2445, 2460, 2471, 2482, 2493, 2504, 2515, 2526, 2537, 2548
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OFFSET

1,2


LINKS

Robert Israel, Table of n, a(n) for n = 1..9999


MAPLE

N:= 100: count:= 0: R:= {$1..N}:
V:= Vector(N):
for n from 1 while count < N do
Q:= map(proc(t) local i; seq(t mod 10^i, i=1..1+ilog10(t)) end proc,
{seq(floor(n/10^i), i=0..ilog10(n))}) intersect R;
for m in Q do
V[m]:= V[m]+1;
if V[m] = m then A[m]:= n; count:= count+1 fi
od;
od:
seq(A[i], i=1..N); # Robert Israel, Sep 25 2019


CROSSREFS

Leading diagonal of triangle defined in A072484.
Cf. A072483, A072484.
Sequence in context: A004960 A098953 A228157 * A035333 A001704 A127421
Adjacent sequences: A072482 A072483 A072484 * A072486 A072487 A072488


KEYWORD

base,nonn


AUTHOR

Amarnath Murthy, Jul 07 2002


EXTENSIONS

Corrected and extended by Robert Israel, Sep 25 2019


STATUS

approved



