A255202 Numbers n such that prime(n) + {1, 2, 3, 4, 5, 6} are all products of the same number of primes (not necessarily all distinct).

369, 8788, 16456, 20522, 23335, 53601, 64203, 77047, 97930, 100123, 116986, 120745, 127847, 128474, 129629, 137028, 138427, 139723, 152996, 206376, 209983, 217177, 230179, 236419, 240219, 243899

Offset

1,1

Comments

Differs from A255194: E.g., 64203 is here (and not in A255194) because prime(64203)+{1,2,3,4,5,6} are all products of four (not three) primes.

Links

Zak Seidov, Table of n, a(n) for n = 1..1200

Prog

(PARI) for(n=1, 3*10^4, p=prime(n); c=0; for(i=1, 5, if(bigomega(p+i)==bigomega(p+i+1), c++); if(bigomega(p+i)!=bigomega(p+i+1), c=0; break)); if(c==5, print1(n, ", "))) \\ Derek Orr, Feb 19 2015

Crossrefs

Cf. A255194.

Sequence in context: A205911 A205903 A237844 * A255194 A108772 A224562

Adjacent sequences: A255199 A255200 A255201 * A255203 A255204 A255205

Keyword

nonn

Author

Zak Seidov, Feb 17 2015

Status

approved