A220111 Main diagonal of array T(k,n) = n-th number in which the number of distinct base 10 digits is k.

0, 12, 104, 1026, 10238, 102354, 1023468, 10234587, 1023457869

Offset

1,2

Links

Table of n, a(n) for n=1..9.

Example

T(1,1) = 0, which is first number in which the number of distinct base 10 digits is 1. That row has only one other element, 1.
T(2,2) = 12, which is first number not beginning with a zero in which the number of distinct base 10 digits is 2. The row begins: 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23,....
0,1,2,3,4,5,6,...
10,12,13,14,15,16,17,...
102,103,104,105,106,107,108,...
1023,1024,1025,1026,1027,1028,1029,...
10234,10235,10236,10237,10238,10239,10243,...
102345,102346,102347,102348,102349,102354,102356,...
1023456,1023457,1023458,1023459,1023465,1023467,1023468,...

Crossrefs

Cf. A043537, A031969 (case 4), A220076 (case 6), A218019 (case 7).

Cf. A219743 (case 8), A050278 (pandigital numbers).

Sequence in context: A003431 A173835 A334168 * A353549 A094530 A157024

Adjacent sequences: A220108 A220109 A220110 * A220112 A220113 A220114

Keyword

nonn,base,easy,fini,full

Author

Jonathan Vos Post, Dec 05 2012

Status

approved