A022833 a(0)=2; thereafter a(n) = a(n-1) + prime(n) if a(n-1) < prime(n), otherwise a(n) = a(n-1) - prime(n). Cf. A008348.

2, 0, 3, 8, 1, 12, 25, 8, 27, 4, 33, 2, 39, 80, 37, 84, 31, 90, 29, 96, 25, 98, 19, 102, 13, 110, 9, 112, 5, 114, 1, 128, 259, 122, 261, 112, 263, 106, 269, 102, 275, 96, 277, 86, 279, 82, 281, 70, 293, 66, 295, 62, 301, 60, 311, 54, 317, 48, 319, 42, 323, 40

Offset

0,1

Comments

Old definition was "a(n) = c(1)p(2) + ... + c(n)p(n+1), where c(i) = 1 if a(i-1) <= p(i+1) and c(i) = -1 if a(i-1) > p(i+1) (p(i) = primes)."

Links

Table of n, a(n) for n=0..61.

Crossrefs

Cf. A008348, A022837.

Sequence in context: A127160 A334847 A131330 * A257236 A209259 A020826

Adjacent sequences: A022830 A022831 A022832 * A022834 A022835 A022836

Keyword

nonn

Author

Clark Kimberling

Extensions

Name corrected by Sean A. Irvine, May 22 2019

Definition and start of sequence rewritten by N. J. A. Sloane, Sep 04 2019

Status

approved