

A064899


Numbers that are of the form pq where p and q are distinct primes that are the orders of nonAbelian groups.


17



6, 10, 14, 21, 22, 26, 34, 38, 39, 46, 55, 57, 58, 62, 74, 82, 86, 93, 94, 106, 111, 118, 122, 129, 134, 142, 146, 155, 158, 166, 178, 183, 194, 201, 202, 203, 205, 206, 214, 218, 219, 226, 237, 253, 254, 262, 274, 278, 291, 298, 301, 302, 305, 309, 314, 326
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OFFSET

1,1


LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000
Index entries for sequences related to groups


PROG

(PARI) is(n)=my(f=factor(n)); f[, 2]==[1, 1]~ && f[2, 1]%f[1, 1]==1 \\ Charles R Greathouse IV, Oct 22 2015
(PARI) list(lim)=my(v=List()); forprime(q=3, lim\2, forprime(p=2, min(lim\q, q1), if(q%p==1, listput(v, p*q)))); Set(v) \\ Charles R Greathouse IV, Oct 22 2015


CROSSREFS

This is the intersection of sequences A060652 and A006881.
Cf. A001358, A064900A064911.
Sequence in context: A068919 A060650 A068198 * A339005 A271550 A315224
Adjacent sequences: A064896 A064897 A064898 * A064900 A064901 A064902


KEYWORD

nonn


AUTHOR

Patrick De Geest, Oct 13 2001


EXTENSIONS

Definition corrected by Franklin T. AdamsWatters, Oct 09 2006


STATUS

approved



