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Search: id:A110232
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| A110232 |
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6-almost primes p * q * r * s * t * u not relatively prime to p+q+r+s+t+u. |
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+0
12
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| 64, 144, 160, 216, 240, 324, 336, 400, 528, 540, 560, 624, 729, 756, 784, 816, 840, 880, 900, 912, 1040, 1104, 1134, 1188, 1215, 1232, 1260, 1320, 1350, 1360, 1392, 1404, 1456, 1488, 1500, 1520, 1560, 1764, 1776, 1836, 1840, 1848, 1904, 1936, 1960, 1968
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OFFSET
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1,1
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COMMENT
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p, q, r, s, t, u are not necessarily distinct. The converse to this is A110231: 6-almost primes p * q * r * s * t * u which are relatively prime to p+q+r+s+t+u. A046306 is the 6-almost primes.
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EXAMPLE
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160 is in this sequence because 160 = 2^5 * 5, the sum of whose prime factors is 2 + 2 + 2 + 2 + 2 + 5 = 15 = 3 * 5, which has a prime factor in common with 160.
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CROSSREFS
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Cf. A046306, A110187, A110188, A110227, A110228, A110229, A110230, A110231, A110289, A110290, A110296, A110297.
Sequence in context: A031464 A045076 A068410 this_sequence A044315 A044696 A086052
Adjacent sequences: A110229 A110230 A110231 this_sequence A110233 A110234 A110235
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KEYWORD
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easy,nonn
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AUTHOR
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Jonathan Vos Post (jvospost3(AT)gmail.com), Jul 17 2005
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EXTENSIONS
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Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jul 20 2005
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