A337463 Numbers k such that k, k+1, k+2 and k+3 are products of 6 primes (A046306).

8706123, 24463374, 32442848, 32942943, 36782289, 48580623, 55486248, 57476573, 59600365, 59757774, 62481222, 62664810, 62884590, 63262374, 63728124, 64724373, 65159575, 65450824, 69362487, 70302087, 70370223, 70785924, 71494773, 72060272, 72503682, 73256910, 73638422, 74066874, 74361858

Offset

1,1

Comments

a(1) = 8706123 = A067821(4).

Links

Table of n, a(n) for n=1..29.

Example

8706123 = 3^4*19*5657, 8706124 = 2*2*7*7*43*1033,
8706125 = 5^3*17*17*241, 8706126 = 2*3*11*13*73*139.

Prog

(PARI) for(k=2^6, 75000000, my(found=1); for(j=0, 3, if(bigomega(k+j)!=6, found=0; break)); if(found, print1(k, ", "))) \\ Hugo Pfoertner, Oct 21 2020

Crossrefs

Cf. A067821, A046306, A237201.

Sequence in context: A346333 A242346 A015378 * A151936 A186824 A179577

Adjacent sequences: A337460 A337461 A337462 * A337464 A337465 A337466

Keyword

nonn

Author

Zak Seidov, Sep 29 2020

Status

approved