

A301918


Primes which divide numbers of the form 3^k+3.


1



2, 3, 5, 7, 17, 19, 29, 31, 37, 41, 43, 53, 61, 67, 73, 79, 89, 97, 101, 103, 113, 127, 137, 139, 149, 151, 157, 163, 173, 193, 197, 199, 211, 223, 233, 241, 257, 269, 271, 281, 283, 293, 307, 317, 331, 337, 349, 353, 367, 373, 379, 389, 397, 401, 409, 439
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OFFSET

1,1


COMMENTS

3 is the only number in this sequence which is not in A301916.
Can be used to factor P+1 values where P is a potential prime of the form 3^k+2.
Is this 2 and 3 with A045318?  David A. Corneth, May 04 2018


LINKS

Table of n, a(n) for n=1..56.


EXAMPLE

All values of 3^k+3 are multiples of 2, so 2 is in the sequence.
3^4+3=84, which is a multiple of 7, so 7 is in the sequence.


CROSSREFS

Cf. A045318, A301916, A301917, A301919.
Sequence in context: A164060 A113029 A090432 * A127042 A069802 A067954
Adjacent sequences: A301915 A301916 A301917 * A301919 A301920 A301921


KEYWORD

nonn


AUTHOR

Luke W. Richards, Mar 28 2018


STATUS

approved



