OFFSET
0,21
COMMENTS
a(n) is a multiple of 19
FORMULA
a(n) =n-A056963(n)
MATHEMATICA
Table[n-FromDigits[Reverse[IntegerDigits[n, 20]], 20], {n, 0, 70}] (* Harvey P. Dale, Oct 28 2019 *)
CROSSREFS
KEYWORD
base,sign
AUTHOR
Henry Bottomley, Jul 18 2000
STATUS
approved