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A124729
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Numbers n such that n, n+1, n+2 and n+3 are products of 5 primes.
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2
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57967, 491875, 543303, 584647, 632148, 632149, 715374, 824523, 878875, 914823, 930123, 931623, 955448, 964143, 995874
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Subset of A045940 Numbers n such that factorizations of n through n+3 have same number of primes (including multiplicities). Cf. A124057, A124728 Numbers n such that n, n+1, n+2 and n+3 are products of exactly 3,4 primes. There are no numbers n such that n, n+1, n+2 and n+3 are products of exactly 6 primes(?)
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LINKS
| D. W. Wilson, Table of n, a(n) for n = 1..10000
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EXAMPLE
| 57967=7^3*13^2, 57968=2^4*3623, 57969=3^3*19*113, 57970=2*5*11*17*31 (all product of 5 primes (including multiplicities)};
632148 is the first number such that n through n+4 are 5-almost primes.
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CROSSREFS
| Cf. A045940, A124057, A124728.
Sequence in context: A031861 A119887 A188256 * A184372 A075980 A147700
Adjacent sequences: A124726 A124727 A124728 * A124730 A124731 A124732
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KEYWORD
| nonn
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Nov 05 2006
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