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A281383 Triangle read by rows T(n,k) is the least integer with more than 1 digit in base n and k, such that the set of its base_n digits equals the set of its base_k digits. 1
2, 9, 3, 4, 22, 4, 5, 7, 28, 5, 6, 36, 55, 46, 6, 49, 51, 9, 17, 68, 7, 8, 17, 64, 91, 708, 94, 8, 9, 9, 81, 11, 212, 31, 124, 9, 10, 10, 13, 213, 331, 23, 614, 158, 10, 11, 23, 124, 385, 13, 38, 145, 49, 196, 11, 12, 12, 25, 49, 289, 61, 475, 2035, 1880, 238, 12 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..67.

FORMULA

T(n, n) = n.

EXAMPLE

Triangle starts:

2;

9, 3;

4, 22, 4;

5, 7, 28, 5;

6, 36, 55, 46, 6;

49, 51, 9, 17, 68, 7;

8, 17, 64, 91, 708, 94, 8;

...

PROG

(PARI) T(n, k) = my(m=min(n, k)); while (Set(digits(m, n)) != Set(digits(m, k)), m++); m;

tabl(nn) = {for (n=2, nn, for (k=2, n, print1(T(n, k), ", "); ); print(); ); }

CROSSREFS

Cf. A033170, A037408-A037443.

Cf. A281384 (first column).

Sequence in context: A111689 A085093 A194025 * A275838 A323720 A021777

Adjacent sequences:  A281380 A281381 A281382 * A281384 A281385 A281386

KEYWORD

nonn,base,tabl

AUTHOR

Michel Marcus, Jan 21 2017

STATUS

approved

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Last modified April 25 16:59 EDT 2019. Contains 322461 sequences. (Running on oeis4.)