OFFSET
1,2
COMMENTS
Similar sequences with any other initial a(1) will eventually merge with case a(1)=1.
EXAMPLE
1 + 3 = 4 = 2*2, 3 + 6 = 9 = 3*3, 6 + 8 = 14 = 2*7, etc.
MATHEMATICA
s={a=1}; Do[k=a+1; While[PrimeOmega[a+k]!=2, k++]; AppendTo[s, a=k], {100}]; s
PROG
(PARI) lista(nn) = {print1(a = 1, ", "); for (k=1, nn, na = a+1; while (bigomega(a+na) != 2, na++); a = na; print1(a, ", "); ); } \\ Michel Marcus, Oct 17 2015
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Oct 15 2015
STATUS
approved