|
|
A136758
|
|
a(n) = leading digit of n! in base 7.
|
|
14
|
|
|
1, 1, 2, 6, 3, 2, 2, 2, 2, 3, 4, 6, 1, 3, 6, 1, 4, 1, 3, 1, 4, 1, 5, 2, 1, 4, 2, 1, 5, 3, 2, 1, 5, 3, 2, 1, 1, 1, 5, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 4, 5, 6, 1, 1, 1, 2, 3, 4, 5, 1, 1, 2, 3, 4, 1, 1, 2, 3, 5, 1, 2, 3, 5, 1, 2, 3, 6, 1, 3, 5, 1, 2, 4, 1, 2, 4, 1, 2, 5, 1, 2
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,3
|
|
LINKS
|
|
|
EXAMPLE
|
a(10) = 4 as 10! = 42562410_7 which has leading digit 4. - David A. Corneth, Jan 15 2021
|
|
MATHEMATICA
|
First[IntegerDigits[#, 7]]&/@(Range[0, 100]!) (* Harvey P. Dale, Nov 23 2013 *)
|
|
PROG
|
|
|
CROSSREFS
|
Cf. A000142, A136694, A136754, A136755, A136756, A136757, A136759, A136760, A008905, A136761, A136762, A136763, A136764, A136765, A136766.
|
|
KEYWORD
|
base,easy,nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|