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A055876 a(n) = round( 1 + e^(n-2) ). 4
1, 2, 4, 8, 21, 56, 149, 404, 1098, 2982, 8104, 22027, 59875, 162756, 442414, 1202605, 3269018, 8886112, 24154954, 65659970, 178482302, 485165196, 1318815735, 3584912847, 9744803447, 26489122131, 72004899338, 195729609430 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Another increment sequence for Shell short that produces good results (a bit better than A036569).

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..1000

Index entries for sequences related to sorting

CROSSREFS

Cf. A003462, A036562, A036569, A055875.

Sequences used for Shell sort: A003462, A033622, A036562, A036564, A036569, A055875, A055876.

Sequence in context: A002040 A162110 A108071 * A065847 A133604 A262345

Adjacent sequences:  A055873 A055874 A055875 * A055877 A055878 A055879

KEYWORD

easy,nonn

AUTHOR

Steven Pigeon (pigeon(AT)iro.umontreal.ca), Jul 14 2000

EXTENSIONS

More terms from James A. Sellers, Aug 22 2000

STATUS

approved

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Last modified April 28 12:16 EDT 2017. Contains 285575 sequences.