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A056808 Members of A055932 which are not least prime signatures (cf. A025487). +0
6
18, 54, 90, 108, 150, 162, 270, 300, 324, 450, 486, 540, 600, 630, 648, 750, 810, 972, 1050, 1200, 1350, 1458, 1470, 1500, 1620, 1890, 1944, 2100, 2250, 2400, 2430, 2700, 2916, 2940, 3000, 3150, 3240, 3750, 3780, 3888, 4050, 4200, 4374, 4410, 4500, 4800 (list; graph; listen)
OFFSET

1,1

EXAMPLE

18 = 2*3*3 and all prime divisors are consecutive primes but the least prime signature is 12 = 2*2*3; so a(1) = 18.

CROSSREFS

A025487 and A055932.

Sequence in context: A096011 A068396 A044120 this_sequence A044501 A163758 A069973

Adjacent sequences: A056805 A056806 A056807 this_sequence A056809 A056810 A056811

KEYWORD

easy,nonn

AUTHOR

Alford Arnold (Alford1940(AT)aol.com), Aug 22 2000

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), Nov 28 2000

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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