A140461 - OEIS

A140461

Numbers in A008364 but not in A038511.

1, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..57.

MAPLE

isA008364 := proc(n) if n = 1 then true; else min( op(numtheory[factorset](n)) ); if % > 7 then true; else false; end if; end if; end proc:

isA038511 := proc(n) if n = 1 then false; else min( op(numtheory[factorset](n)) ); if % >= 11 and not isprime(n) then true; else false; end if; end if; end proc:

for n from 1 to 300 do if isA008364(n) and not isA038511(n) then printf("%d, ", n) ; end if; end do: # R. J. Mathar, Apr 25 2010

PROG

(PARI) a(n)=if(n==1, 1, prime(n+3)) \\ Charles R Greathouse IV, Aug 26 2011

CROSSREFS

Sequence in context: A322273 A096489 A008364 * A120533 A226108 A273906

Adjacent sequences: A140458 A140459 A140460 * A140462 A140463 A140464

KEYWORD

nonn,easy

AUTHOR

Juri-Stepan Gerasimov, Jul 22 2008

EXTENSIONS

Entries checked by R. J. Mathar, Apr 25 2010

STATUS

approved