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A119404 Primes p=prime(i) of level (1,9), i.e., such that A118534(i)=prime(i-9). 10
678659, 855739, 1403981, 2366543, 2744783, 2830657, 3027539, 3317033, 4525909, 4676851, 5341463, 5819563, 7087123, 7181897, 8815663, 9324257, 9878929, 9976937, 10403251, 10440641, 10447457, 10766411, 10787377, 11829151, 11881957, 12539389, 14026433, 14087179 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

This subsequence of A125830 and of A162174 gives primes of level (1,9): If prime(i) has level 1 in A117563 and 2*prime(i) - prime(i+1) = prime(i-k), then we say that prime(i) has level (1,k).

LINKS

Fabien Sibenaler, Table of n, a(n) for n = 1..10000

EXAMPLE

prime(780815) - prime(780814) = 11882071 - 11881957 = 11881957 - 11881843 = prime(780814) - prime(780814-9) and prime(780814) has level 1 in A117563, so prime(780814)=11881957 has level (1,9).

CROSSREFS

Cf. A117078, A117563, A006562 (primes of level (1,1)), A117876, A118464, A118467.

Sequence in context: A251884 A237005 A205244 * A014886 A253868 A253875

Adjacent sequences:  A119401 A119402 A119403 * A119405 A119406 A119407

KEYWORD

nonn

AUTHOR

Rémi Eismann and Fabien Sibenaler, Jul 25 2006

EXTENSIONS

Definition and comment reworded following suggestions from the authors. - M. F. Hasler, Nov 30 2009

STATUS

approved

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Last modified July 23 22:20 EDT 2021. Contains 346265 sequences. (Running on oeis4.)