OFFSET
1,1
COMMENTS
This is a finite sequence with 9*9! = 3265920 terms: a(9*9!) = 9876543210/9 = 1097393690. - Zak Seidov, Jan 14 2012
First differences are given in A217626. - M. F. Hasler, Sep 18 2017
MATHEMATICA
(* first 720 terms: *) (1023000000 + FromDigits/@Permutations[{4, 5, 6, 7, 8, 9}])/9
CROSSREFS
KEYWORD
base,fini,nonn
AUTHOR
Zak Seidov, Dec 12 2009
STATUS
approved