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A050243 [ (1/2 * (sqrt(2) + 1 + sqrt(2*sqrt(2) - 1)))^n ]. 0
1, 1, 3, 6, 12, 23, 44, 84, 158, 297, 561, 1056, 1989, 3746, 7056, 13287, 25023, 47125, 88746, 167127, 314735, 592710, 1116193, 2102019, 3958531, 7454720, 14038755, 26437833, 49787820, 93760597, 176570285, 332517781, 626198652, 1179259497 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

CROSSREFS

Sequence in context: A089068 A018180 A079735 * A024505 A005256 A097979

Adjacent sequences:  A050240 A050241 A050242 * A050244 A050245 A050246

KEYWORD

nonn,easy

AUTHOR

Antreas P. Hatzipolakis (xpolakis(AT)otenet.gr), Dec 21 1999

EXTENSIONS

More terms from David W. Wilson (davidwwilson(AT)comcast.net), Dec 22, 1999.

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Last modified February 14 16:05 EST 2012. Contains 205635 sequences.