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A163281 First differences of A163280. 1
1, 2, -1, 3, 3, -4, 3, 4, 4, -9, 3, 5, 5, 5, -14, 3, 4, 6, 6, 6, -23, 9, -1, 7, 7, 7, 7, -32, 9, 1, 5, 8, 8, 8, 8, -45, 15, -1, 11, 1, 9, 9, 9, 9, -58, 15, 1, 13, -2, 10, 10, 10, 10, 10, -71, 17, 5, 17, -13, 11, 11, 11, 11, 11, 11, -90, 27, -1, 19, -11 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..70.

CROSSREFS

Cf. A161344, A163280, A163983, A164000.

Sequence in context: A218975 A048619 A116087 * A307857 A116921 A173989

Adjacent sequences:  A163278 A163279 A163280 * A163282 A163283 A163284

KEYWORD

sign

AUTHOR

Omar E. Pol, Aug 08 2009

EXTENSIONS

More terms from Michel Marcus, Feb 15 2014

STATUS

approved

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Last modified December 7 08:14 EST 2019. Contains 329839 sequences. (Running on oeis4.)