|
|
A077309
|
|
Concatenation of n numbers starting with n.
|
|
2
|
|
|
1, 23, 345, 4567, 56789, 67891011, 78910111213, 89101112131415, 91011121314151617, 10111213141516171819, 1112131415161718192021, 121314151617181920212223
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
LINKS
|
|
|
MATHEMATICA
|
Table[FromDigits@ Flatten@ Take[#, {n, n + (n - 1)}], {n, Ceiling[Length[#]/2]}] &@ Array[IntegerDigits, 23] (* Michael De Vlieger, May 13 2017 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
base,easy,nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|