OFFSET
1,1
COMMENTS
Numbers k such that both k and k+1 are in A369139.
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
EXAMPLE
a(4) = 165 is a term because 165 = 3 * 5 * 11 has 3 prime factors (counted with multiplicity), 166 = 2 * 83 has 2 and 167 (which is prime) has 1.
MAPLE
N:= 10^4: # for terms <= N
V:= map(numtheory:-bigomega, [$1..N+2]):
select(t -> V[t] = 1 + V[t+1] and V[t] = 2 + V[t+2], [$1..N]);
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov and Robert Israel, Jan 15 2024
STATUS
approved