A268406 Numbers m such that both m and (m^2 + m + 41) are the product of 7 primes.

7375900, 8485664, 11642320, 11699226, 13816672, 13888872, 14406210, 16537328, 16652760, 16803108, 18127944, 18921420

Offset

1,1

Comments

Primes counted with multiplicity. - Harvey P. Dale, Jan 29 2024

Links

Table of n, a(n) for n=1..12.

Mathematica

Select[Range[18922000], PrimeOmega[#]==PrimeOmega[#^2+#+41]==7&] (* Harvey P. Dale, Jan 29 2024 *)

Crossrefs

Subsequence of A268405.

Sequence in context: A158256 A306873 A269220 * A302135 A104921 A202721

Adjacent sequences: A268403 A268404 A268405 * A268407 A268408 A268409

Keyword

nonn

Author

Zak Seidov, Feb 04 2016

Status

approved