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A159547 Smallest number b such that the number whose digits are n in base b is a skinny number +0
1
2, 5, 10, 17, 26, 37, 50, 65, 82, 2, 3, 5, 10, 17 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n) <= 10 iff n is in A061909

EXAMPLE

a(10) = 2 because 10^2 = 100 in all bases >= 2. a(14) = 17 because in base 16, 14^2 is 1|9|0 while in base 17 14^2 is 1|8|16 (where numbers separated by |'s represent individual digits, whereas digits with no | in between stand for a single digit in bases greater than 10.

CROSSREFS

A061909

Sequence in context: A078325 A059591 A082607 this_sequence A002522 A069987 A119114

Adjacent sequences: A159544 A159545 A159546 this_sequence A159548 A159549 A159550

KEYWORD

more,nonn

AUTHOR

J. Lowell (jhbubby(AT)mindspring.com), Apr 14 2009

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.


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