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Search: id:A114966
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| A114966 |
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Prime(n) + Semiprime(n) + 3AlmostPrime(n) + 4AlmostPrime(n) + 5AlmostPrime(n). |
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+0
1
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| 62, 93, 140, 157, 214, 224, 238, 326, 344, 364, 384, 423, 451, 516, 538, 568, 589, 600, 630, 672, 689, 736, 807, 837, 871, 892, 916, 937, 964, 993, 1030, 1052, 1090, 1100, 1164, 1192, 1250, 1294, 1320, 1359, 1373, 1387, 1435, 1454, 1487, 1526, 1547, 1584
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Primes in this sequence include a(4) = 157, a(28) = 937, a(41) = 1373, a(45) = 1487, a(49) = 1609.
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FORMULA
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a(n) = A000040(n) + A001358(n) + A014612(n) + A014613(n) + A014614(n). a(n) = A114944(n) + A014614(n).
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EXAMPLE
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a(1) = Prime(1) + Semiprime(1) + 3AlmostPrime(1) +
4AlmostPrime(1) + 5AlmostPrime(1) = 2 + 4 + 8 + 16 + 32 = 62.
a(6) = A114944(6) + A014614(6) = 112 + 112 = 224.
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CROSSREFS
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Cf. A000040, A001358, A014612, A014613, A014613, A114382, A114944.
Sequence in context: A043994 A039479 A118156 this_sequence A104078 A136774 A044249
Adjacent sequences: A114963 A114964 A114965 this_sequence A114967 A114968 A114969
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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), Feb 21 2006
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