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A141818 "Early bird" prime numbers: write the natural numbers in a string 12345678910111213.... Sequence gives prime numbers which occur in the string ahead of their natural place. 0
23, 31, 41, 43, 53, 61, 67, 71, 73, 83, 89, 97, 101, 131, 151, 181, 191, 211, 223, 241, 251, 263, 271, 281, 311, 313, 317, 331, 353, 401, 419, 421, 431, 433, 461, 463, 491, 503 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Subset of A116700
LINKS
EXAMPLE
"23" appears in 1"23"4567..., ahead of its position after "22", so is a member.
CROSSREFS
Cf. A116700.
Sequence in context: A110677 A169640 A026051 * A060328 A034962 A133659
KEYWORD
easy,nonn,base
AUTHOR
STATUS
approved

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Last modified April 15 00:51 EDT 2024. Contains 371667 sequences. (Running on oeis4.)