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A064899 Numbers that are of the form pq where p and q are distinct primes that are the orders of non-Abelian 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 (list; graph; refs; listen; history; text; internal format)
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, q-1), 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, A064900-A064911.

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. Adams-Watters, Oct 09 2006

STATUS

approved

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Last modified June 24 12:30 EDT 2021. Contains 345416 sequences. (Running on oeis4.)