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A083001
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Smallest oblong number having n prime divisors (with multiplicity).
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1
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0, 2, 6, 12, 56, 72, 240, 1056, 4160, 4032, 50400, 65280, 1639680, 262656, 15748992, 40953600, 104867840, 16773120, 205535232, 1073774592, 4294901760, 52613120000, 32480870400, 233605472256, 68719214592, 4398044413952
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| Donovan Johnson, Table of n, a(n) for n = 0..40 (terms < 2*10^21)
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EXAMPLE
| a(4)= 56 = 2*2*2*7.
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PROG
| (PARI) {ondf(m) = print1(0", "); for(n=1, m, k=1; while(bigomega(k*(k+1))!=n, k++); print1(k*(k+1)", ")) }
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CROSSREFS
| Cf. A002378.
Sequence in context: A169858 A152873 A175810 * A119862 A111936 A203811
Adjacent sequences: A082998 A082999 A083000 * A083002 A083003 A083004
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KEYWORD
| nonn
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AUTHOR
| Jason Earls (zevi_35711(AT)yahoo.com), May 30 2003
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EXTENSIONS
| More terms from Don Reble (djr(AT)nk.ca), Jun 03 2003
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