

A216202


Primes p=prime(i) of level (1,7), i.e., such that A118534(i) = prime(i7).


1



22307, 39251, 81569, 85853, 132763, 159233, 179849, 188029, 281431, 370949, 373393, 421741, 480587, 607363, 630737, 741721, 770669, 782011, 812527, 879743, 909917, 928703, 1008263, 1037347, 1095859, 1111091, 1126897, 1173631, 1260911, 1382681, 1398781, 1439447
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OFFSET

1,1


COMMENTS

If prime(i) has level 1 in A117563 and 2*prime(i)  prime(i+1) = prime(ik), then we say that prime(i) has level (1,k).


LINKS

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


EXAMPLE

81569 = prime(7980) is a term because:
prime(7981) = 81611, prime(7973) = 81527;
2*prime(7980)  prime(7981) = prime(7973).


MATHEMATICA

With[{m = 7}, Prime@ Select[Range[m + 1, 10^5], If[MemberQ[{1, 2, 4}, #], 0, 2 Prime[#]  Prime[# + 1]] == Prime[#  m] &]] (* Michael De Vlieger, Jul 16 2017 *)


CROSSREFS

Subsequence of A125830 and A162174.
Cf. A117078, A117563, A006562 (primes of level (1,1)), A117876, A118464, A118467, A119402, A119403, A119404, A125565, A125572, A125574, A125576, A125623.
Sequence in context: A204333 A252774 A253042 * A154094 A206656 A329787
Adjacent sequences: A216199 A216200 A216201 * A216203 A216204 A216205


KEYWORD

nonn


AUTHOR

Fabien Sibenaler, Mar 12 2013


STATUS

approved



