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A088637 a(1) = 1, a(n+1) = a(n) + smallest prime not added earlier if a(n) is noncomposite else a(n+1) = a(n) + the smallest composite number not added earlier. 1
1, 3, 6, 10, 16, 24, 33, 43, 48, 60, 74, 89, 96, 112, 130, 150, 171, 193, 204, 228, 253, 279, 306, 334, 364, 396, 429, 463, 476, 511, 547, 564, 602, 641, 660, 700, 742, 786, 831, 877, 900, 948, 997, 1026, 1076, 1127, 1179, 1233, 1288, 1344, 1401, 1459, 1490 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..53.

CROSSREFS

Cf. A088638.

Sequence in context: A310085 A310086 A310087 * A256529 A256528 A066377

Adjacent sequences:  A088634 A088635 A088636 * A088638 A088639 A088640

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Oct 26 2003

EXTENSIONS

More terms from David Wasserman, Aug 16 2005

STATUS

approved

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Last modified December 16 06:18 EST 2019. Contains 330016 sequences. (Running on oeis4.)