A167690 The even composites n such that n=q*g*j*y and q+g=j*y where q,g,j,y are primes.

16, 54, 126, 210, 250, 390, 462, 686, 798, 1150, 1254, 1794, 1870, 2046, 2662, 2886, 3162, 3458, 4394, 4606, 4930, 5830, 5934, 8246, 8602, 9246, 9430, 9826, 10974, 13718, 14110, 15370, 15762, 16198, 19434, 21414, 22678, 24198, 24334, 25990

Offset

1,1

Links

Table of n, a(n) for n=1..40.

Example

a(1)=2*2*2*2=16; a(2)=3*3*2*3=54; a(3)=2*7*3*3=126; a(4)=3*7*2*5=210.

Crossrefs

Cf. A000040, A157931, A167629.

Sequence in context: A197246 A187104 A137741 * A297842 A172190 A122658

Adjacent sequences: A167687 A167688 A167689 * A167691 A167692 A167693

Keyword

nonn

Author

Juri-Stepan Gerasimov, Nov 09 2009

Extensions

Corrected (250, 686, 1794 etc inserted, 9486, 15782 removed) by R. J. Mathar, May 30 2010

Status

approved