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A145119 Even rounded factorial: product(k in [1, n - 1]: ceil(n / k) - ceil(n / k) mod 2). 0
1, 2, 4, 16, 32, 96, 384, 1024, 2048, 10240, 30720, 73728, 294912, 688128, 1835008, 12582912, 25165824, 56623104, 283115520, 629145600, 1887436800, 11072962560, 26575110144, 57982058496, 231928233984, 753766760448, 1758789107712 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Bounded by A010786 and A131385.

Each term has many more factors of two than any other prime factor.

LINKS

Table of n, a(n) for n=1..27.

CROSSREFS

Cf. A010786, A131385, A131387

Sequence in context: A032464 A171381 A274497 * A081411 A269758 A094384

Adjacent sequences:  A145116 A145117 A145118 * A145120 A145121 A145122

KEYWORD

easy,nonn

AUTHOR

Reikku Kulon, Oct 02 2008

STATUS

approved

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Last modified March 29 06:34 EDT 2017. Contains 284250 sequences.