OFFSET
1,1
COMMENTS
Primes p in A022010 belong to 179 (mod 210), therefore a(n) is congruent to the product of residues {179, 181, 187, 191, 193, 197, 199} (mod 210), so a(n) is congruent to 17 (mod 210). Gaps between prime factors are {2, 6, 4, 2, 4, 2}.
LINKS
Michael De Vlieger, Table of n, a(n) for n = 1..10000
MATHEMATICA
Map[Times @@ NextPrime[#, Range[0, 6]] &, Select[Prime@ Range[2^20], AllTrue[# + {2, 8, 12, 14, 18, 20}, PrimeQ] &]]
CROSSREFS
KEYWORD
nonn
AUTHOR
Michael De Vlieger, Aug 23 2024
STATUS
approved