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A120138 a(1)=10; a(n)=floor((20+sum(a(1) to a(n-1)))/2). 0
10, 15, 22, 33, 50, 75, 112, 168, 252, 378, 567, 851, 1276, 1914, 2871, 4307, 6460, 9690, 14535, 21803, 32704, 49056, 73584, 110376, 165564, 248346, 372519, 558779, 838168, 1257252, 1885878, 2828817, 4243226, 6364839, 9547258, 14320887 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..36.

CROSSREFS

Cf. A073941, A112088, A072493.

Sequence in context: A115679 A109373 A267329 * A050200 A034961 A207637

Adjacent sequences:  A120135 A120136 A120137 * A120139 A120140 A120141

KEYWORD

nonn

AUTHOR

Graeme McRae, Jun 10 2006

STATUS

approved

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Last modified August 24 13:48 EDT 2019. Contains 326279 sequences. (Running on oeis4.)