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A110718 Beginning with 7, concatenation of n successive numbers such that every partial concatenation is a prime. 3
7, 1011, 123, 30313233, 127128129130131, 363738394041, 78910111213, 11661167116811691170117111721173, 251252253254255256257258259, 168169170171172173174175176177, 439440441442443444445446447448449 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
7,71011,71011123,... are all prime.
CROSSREFS
Sequence in context: A173852 A062841 A349736 * A293142 A013544 A250914
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Aug 05 2005
EXTENSIONS
More terms from Jon E. Schoenfield, Jul 11 2010
STATUS
approved

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Last modified March 29 11:14 EDT 2024. Contains 371278 sequences. (Running on oeis4.)