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A128686 Least n-almost prime of the form semiprime - 1. +0
1
3, 9, 8, 24, 32, 64, 128, 864, 1792, 1536, 2048, 4096, 8192, 24576, 73728, 98304, 131072, 393216, 524288, 1048576, 3145728, 6291456, 8388608, 37748736, 50331648, 150994944 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Cf. A005383, A070552, A128665.

Sequence in context: A070342 A021719 A016677 this_sequence A103555 A083352 A091559

Adjacent sequences: A128683 A128684 A128685 this_sequence A128687 A128688 A128689

KEYWORD

more,nonn

AUTHOR

Ray Chandler (rayjchandler(AT)sbcglobal.net), Mar 20 2007

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Last modified September 5 19:27 EDT 2008. Contains 143485 sequences.

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