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A076636 a(1) = 1, a(2n) = smallest prime > (2n-1)-th partial sum of the sequence itself and a(2n+1) = smallest composite number > 2n-th partial sum of the sequence. 0
1, 2, 4, 11, 20, 41, 80, 163, 323, 647, 1293, 2591, 5177, 10357, 20711, 41443, 82865, 165749, 331479, 662999, 1325957, 2651947, 5303861, 10607731, 21215453, 42430919, 84861825, 169723691, 339447341, 678894751, 1357789433, 2715578891 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
CROSSREFS
Cf. A076975.
Sequence in context: A000638 A039824 A204519 * A011954 A278446 A349566
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Oct 23 2002
EXTENSIONS
More terms from Franklin T. Adams-Watters, Aug 29 2006
STATUS
approved

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Last modified March 19 03:21 EDT 2024. Contains 370952 sequences. (Running on oeis4.)