OFFSET
1,2
LINKS
Harry J. Smith, Table of n, a(n) for n = 1..9
FORMULA
a(n) >= 10^(n^4/9) - 1.
MATHEMATICA
Do[ a = {}; While[ Apply[ Plus, a ] + 9 < n^4, a = Append[ a, 9 ] ]; If[ Apply[ Plus, a ] != n^4, a = Prepend[ a, n^4 - Apply[ Plus, a ] ] ]; Print[ FromDigits[ a ] ], {n, 1, 6} ]
PROG
(PARI) { for (n=1, 9, s=n^4; x=s\9; d=s - 9*x; write("b060711.txt", n, " ", (d+1)*10^x - 1); ) } \\ Harry J. Smith, Jul 10 2009
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Robert G. Wilson v, Apr 21 2001
STATUS
approved