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A066778 a(n) = Sum_{i=1..n} floor((3/2)^i). 1
1, 3, 6, 11, 18, 29, 46, 71, 109, 166, 252, 381, 575, 866, 1303, 1959, 2944, 4421, 6637, 9962, 14949, 22430, 33652, 50486, 75737, 113613, 170428, 255650, 383484, 575235, 862861, 1294300, 1941459, 2912198, 4368307, 6552471, 9828717, 14743086 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Harry J. Smith, Table of n, a(n) for n = 1..300

PROG

(PARI) { s=0; for (n=1, 300, write("b066778.txt", n, " ", s+=floor((3/2)^n)) ) } \\ Harry J. Smith, Mar 24 2010

CROSSREFS

Cf. A002379.

Sequence in context: A026905 A286272 A212147 * A265075 A147079 A281572

Adjacent sequences:  A066775 A066776 A066777 * A066779 A066780 A066781

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Jan 18 2002

EXTENSIONS

Definition corrected by Harry J. Smith, Mar 24 2010

STATUS

approved

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Last modified October 20 17:39 EDT 2017. Contains 293648 sequences.