A255164 Numbers m such that, starting with prime(m), 10 consecutive primes plus 1 are a product of the same number k of primes (i.e., are k-almost primes).

16687573, 18163180, 19945279, 21433861, 32241571, 41642534, 61124701, 84985671, 99125673, 120180818, 132409582, 136276974, 139516858, 149714850, 152735870, 160041096, 161934847, 172578057, 177536370, 177733590, 185207739

Offset

1,1

Comments

{A023514(m,..,A023514(m+9)} are of the same value k.

Links

Table of n, a(n) for n=1..21.

Example

a(1)=16687573 because A023514(16687573),..,A023514(16687573+9) are all equal to 4, or
prime(16687573,..,16687573+9)=
{308495917, 308495947, 308495953, 308496017, 308496043, 308496049, 308496091, 308496157, 308496169, 308496173}, and
308495918=2*23*103*65111, 308495948=2^2*79*976253,
308495954=2*13*127*93427, 308496018= 2*3*43*1195721,
308496044=2^2*139*554849, 308496050=2*5^2*6169921,
308496092=2^2*131*588733, 308496158=2*37*317*13151,
308496170=2*5*421*73277, 308496174=2*3*7*7345147.

Crossrefs

Cf. A023514, A254787.

Sequence in context: A248204 A365812 A178555 * A330247 A365853 A034598

Adjacent sequences: A255161 A255162 A255163 * A255165 A255166 A255167

Keyword

nonn

Author

Zak Seidov, Feb 15 2015

Status

approved