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Search: id:A112392
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| A112392 |
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Squares of the form 3*semiprime(n) - 2. |
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+0
3
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| 16, 25, 64, 100, 169, 256, 361, 400, 529, 625, 676, 784, 961, 1156, 1444, 2116, 2209, 3136, 3721, 3844, 4096, 4489, 5041, 5929, 7744, 7921, 8281, 9604, 10000, 10201, 11236, 11449, 11881, 12100, 13456, 14641, 16129, 16384, 17161, 18496, 20164
(list; graph; listen)
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OFFSET
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1,1
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PROGRAM
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(PARI) for(i=1, 15000, if(bigomega(i)==2&&issquare(3*i-2), print1(3*i-2, ", "))) (Herrgesell)
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CROSSREFS
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Cf. A112393.
Sequence in context: A118489 A110922 A065408 this_sequence A109685 A152152 A061101
Adjacent sequences: A112389 A112390 A112391 this_sequence A112393 A112394 A112395
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KEYWORD
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nonn
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AUTHOR
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Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Dec 05 2005
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EXTENSIONS
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More terms from Lambert Herrgesell (zero815(AT)googlemail.com), Dec 12 2005
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