login
A093216
a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 16.
0
0, 964800, 99288000, 99840000, 9998400000, 999984000000, 99999840000000, 9999998400000000, 999999984000000000, 99999999840000000000, 9999999998400000000000, 999999999984000000000000, 99999999999840000000000000, 9999999999998400000000000000
OFFSET
1,2
EXAMPLE
a(2) is 964800 because its length-2 substrings (96, 64, 48, 80, 00) are all distinct and divisible by 16 and there is no larger number with this property.
CROSSREFS
Cf. A093211, A093212, ..., A093299.
Sequence in context: A348123 A022236 A083609 * A272555 A121888 A178292
KEYWORD
base,nonn,less
AUTHOR
Hans Havermann, Mar 28 2004
EXTENSIONS
a(8)-a(10) from John Cerkan, May 22 2017
a(11)-a(14) from John Cerkan, Jan 09 2018
STATUS
approved