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A083181 a(1)=1, a(n) = smallest positive integer not included earlier such that the partial sums of a(A000040) are composite and the partial sums of a(A002808) are primes. 2
1, 4, 2, 3, 6, 8, 9, 12, 14, 10, 5, 20, 7, 16, 18, 26, 11, 22, 13, 24, 38, 28, 15, 30, 42, 36, 32, 40, 19, 44, 17, 46, 48, 50, 34, 60, 21, 56, 52, 54, 23, 66, 25, 62, 58, 68, 27, 64, 78, 102, 72, 90, 31, 74, 70, 80, 76, 84, 29, 86, 33, 88, 98, 94, 104, 82, 35, 92, 96, 106, 37 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..71.

CROSSREFS

Cf. A083179, A083180.

Sequence in context: A275590 A338844 A333406 * A134074 A010315 A021240

Adjacent sequences:  A083178 A083179 A083180 * A083182 A083183 A083184

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Apr 26 2003

EXTENSIONS

More terms from David Wasserman, Oct 26 2004

STATUS

approved

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Last modified October 4 01:04 EDT 2022. Contains 357237 sequences. (Running on oeis4.)