

A235766


Smallest first term of a sequence of exactly n consecutive hoax numbers.


2




OFFSET

1,1


COMMENTS

A hoax number is a composite number whose sum of digits is equal to the sum of the digits of its distinct prime factors.


LINKS

Table of n, a(n) for n=1..8.
Giovanni Resta, Hoax numbers
Eric Weisstein's World of Mathematics, Hoax Number


EXAMPLE

For n = 1, a(1) = 22 because 22 = 11*2 and the sum of the digits (SOD) in both sides is 4 but 23 is not composite.
For n = 2, a(2) = 84 because 84 = 2^2*3*7, SOD = 12; 85 = 5*17, SOD = 13 but 86 = 2*43 and SOD = 14 <> 9.


CROSSREFS

Cf. A019506.
Sequence in context: A010010 A237618 A105101 * A044209 A044590 A125243
Adjacent sequences: A235763 A235764 A235765 * A235767 A235768 A235769


KEYWORD

nonn,hard,more,base


AUTHOR

Carlos Rivera, Jan 15 2014


EXTENSIONS

a(6)a(8) from Giovanni Resta, Jan 15 2014


STATUS

approved



