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A290644
First 4-digit number to appear n times in the decimal expansion of e.
4
2718, 1828, 8793, 8793, 7093, 7093, 7093, 7093, 7093, 7093, 7093, 7093, 7093, 7093, 352, 352, 235, 235, 235, 352, 352, 352, 352, 352, 352, 1661, 352, 352, 352, 352, 352, 1891, 1891, 1891, 1891, 1891, 1891, 352, 3917, 3917, 3917, 3917, 3917, 3917, 3917, 5065, 8149, 8149, 8149, 8149
OFFSET
1,1
COMMENTS
Some of the numbers start with 0. For example, a(15) is the 4-digit number 0352.
The first two appearances of a(2) = 1828 appear consecutively as 18281828.
EXAMPLE
a(2) = 1828 because 1828 is the first 4-digit number to appear 2 times in the decimal expansion of e = 2.7(1828)(1828)...
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Bobby Jacobs, Aug 08 2017
STATUS
approved