222915domain: NAppears in sequencesNumbers k such that k, k+1, k+2, k+3 and k+4 are terms of A288041.at n=16A336221Odd numbers k for which A003961(k) > 2*k and A003961(k)-2*k OR A003961(k)-sigma(k) = A003961(k)-2*k, where OR is bitwise-or (A003986) and A003961 is fully multiplicative with a(p) = nextprime(p).at n=11A388029