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A100715
Pseudoperfect (or semiperfect) k-brilliant numbers for some k>1: some set of proper divisors of a(n) sums to a(n) and a(n) = p(1)p(2)...p(m) for primes all with the same number of digits.
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6, 12, 18, 20, 24, 28, 30, 36, 40, 42, 48, 54, 56, 60, 72, 80, 84, 90, 96, 100, 108, 112, 120, 126, 140, 144, 150, 160, 162, 168, 180, 192, 196, 200, 210, 216, 224, 240, 252
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 20 00:58 EST 2009. Contains 171054 sequences.
AT&T Labs Research
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