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A108022 a(1)=2; a(n) is the smallest prime such that a(n)-a(n-1) is a 4th power (>0). 0
2, 3, 19, 160019, 1049920019, 1050730019, 1051540019, 12910750019, 13960510019, 14167870019, 67252030019, 67252840019, 67318450019, 196918450019, 197968210019, 568118770019, 568119580019, 938270140019, 938477500019 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

All members after 19 will end in '0019'

EXAMPLE

a(3)=19, for 19 +k^4 to be prime, k must be even and divisible by 5. 19+10^4=10019=43*233,but 19+20^4 is prime.

CROSSREFS

Cf. A073609, A076201.

Sequence in context: A066735 A099069 A038584 * A108884 A119584 A089181

Adjacent sequences:  A108019 A108020 A108021 * A108023 A108024 A108025

KEYWORD

nonn

AUTHOR

John L. Drost (drost(AT)marshall.edu), May 31 2005

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Last modified February 13 18:09 EST 2012. Contains 205534 sequences.