OFFSET
1,1
COMMENTS
All numbers are of one of the following forms base 3:
a. 10...02, where there are 0 or more 0's
b. 20...0x, where x is a, b, or 1, and there are 0 or more 0's
c. 10
d. 2
EXAMPLE
11 is in the sequence, since 11=102_3 and the base-3 suffix 2_3 is 2, which is prime.
659 is in the sequence, since 659=220102_3, and the base-3 suffixes are 20102_3=173, 102_3=11, and 2_3=2, all of which are prime.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Randy L. Ekl, Nov 26 2016
STATUS
approved