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A120144 a(1)=19; a(n)=floor((38+sum(a(1) to a(n-1)))/2). 0
19, 28, 42, 63, 95, 142, 213, 320, 480, 720, 1080, 1620, 2430, 3645, 5467, 8201, 12301, 18452, 27678, 41517, 62275, 93413, 140119, 210179, 315268, 472902, 709353, 1064030, 1596045, 2394067, 3591101, 5386651, 8079977, 12119965, 18179948 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..35.

CROSSREFS

Cf. A073941, A112088, A072493.

Sequence in context: A083678 A279771 A257043 * A255924 A067452 A123944

Adjacent sequences:  A120141 A120142 A120143 * A120145 A120146 A120147

KEYWORD

nonn

AUTHOR

Graeme McRae, Jun 10 2006

STATUS

approved

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Last modified September 27 13:13 EDT 2020. Contains 337380 sequences. (Running on oeis4.)