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A120137 a(1)=8; a(n)=floor((17+sum(a(1) to a(n-1)))/2). 0
8, 12, 18, 27, 41, 61, 92, 138, 207, 310, 465, 698, 1047, 1570, 2355, 3533, 5299, 7949, 11923, 17885, 26827, 40241, 60361, 90542, 135813, 203719, 305579, 458368, 687552, 1031328, 1546992, 2320488, 3480732, 5221098, 7831647, 11747471, 17621206 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..37.

CROSSREFS

Cf. A073941, A112088, A072493.

Sequence in context: A066681 A276403 A171241 * A274951 A033477 A105936

Adjacent sequences:  A120134 A120135 A120136 * A120138 A120139 A120140

KEYWORD

nonn

AUTHOR

Graeme McRae, Jun 10 2006

STATUS

approved

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Last modified October 20 03:04 EDT 2021. Contains 348099 sequences. (Running on oeis4.)