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A293667
First difference of A293666.
1
2, 3, 5, -7, 11, -13, 17, 19, -31, 23, 29, -47, 37, -41, 43, 53, -83, 59, -71, 61, 67, -127, 73, 79, -157, 89, 97, -173, 101, -103, 107, -109, 113, 131, -241, 137, 139, -271, 149, -151, 163, 167, -337, 179, 181, -349, 191, 193, -383, 197, -199, 211, 223, -431
OFFSET
1,1
COMMENTS
For any n > 0, |a(n)| is prime.
EXAMPLE
a(10) = A293666(11) - A293666(10) = 30 - 7 = 23.
CROSSREFS
Cf. A293666.
Sequence in context: A079150 A177000 A117843 * A068192 A225083 A002200
KEYWORD
sign
AUTHOR
Rémy Sigrist, Oct 14 2017
STATUS
approved