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A080898 a(1)=2; for n>1, a(n+1) = least prime > a(n) and congruent to a prime modulo prime successor of a(n). 0
2, 5, 17, 41, 89, 197, 401, 821, 1657, 3329, 6673, 13381, 13399, 26833, 53681, 107453, 214939, 429889, 429901, 859861, 1719799, 3439663, 6879361, 13758803, 27517687 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..25.

EXAMPLE

n=2: prime successor of a(2-1)=2 is 3: 5 mod 3 = 2 is prime, therefore a(2)=5;

n=3: prime successor of a(3-1)=5 is 7: 11 mod 7 = 4, 13 mod 7 = 6, 17 mod 7 = 3 is prime, therefore a(3)=17.

CROSSREFS

Sequence in context: A263638 A118500 A323427 * A081763 A013918 A007351

Adjacent sequences:  A080895 A080896 A080897 * A080899 A080900 A080901

KEYWORD

nonn,easy

AUTHOR

Reinhard Zumkeller, Mar 31 2003

EXTENSIONS

More terms from Sam Alexander, Feb 28 2005

STATUS

approved

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Last modified September 22 05:47 EDT 2019. Contains 327287 sequences. (Running on oeis4.)