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A068857
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a(1) = 0 = 0*2; a(n) = smallest multiple of a(n-1) which is of the form 2k*(2k+2).
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2
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0, 8, 24, 48, 288, 16128, 11950848, 4636929024, 41732361216, 375591250944, 3380321258496, 30422891326464, 273806021938176, 2464254197443584, 22178287776992256, 199604589992930304, 399209179985860608
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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EXAMPLE
| 24 = 4*6 is a member and the smallest multiple of 24 which is of the form 2k(2k+2) is 48 = 6*8.
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CROSSREFS
| Sequence in context: A033996 A146980 A028612 * A064225 A054275 A122655
Adjacent sequences: A068854 A068855 A068856 * A068858 A068859 A068860
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KEYWORD
| nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 12 2002
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EXTENSIONS
| More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Mar 23 2002
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