A230560 a(n)*|a(n)| gives the first difference of A230383.

1, 2, -1, 3, -2, 4, -3, 5, 6, -7, -5, 7, -4, 8, -9, 10, -8, 9, -11, 12, -10, -6, 11, 13, -17, 14, -13, 15, -16, 17, -15, 16, -12, 18, -21, 19, -20, 21, -19, 22, -23, 20, -18, 23, -24, 25, -26, 24, -22, 26, -28, 27, -25, 28, 29, -42, 30, -29, 31, -30, 32, -33

Offset

1,2

Comments

This sequence contains only distinct terms, different from 0.

Links

Paul Tek, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A230383, A230565.

Sequence in context: A029141 A257880 A240866 * A265253 A161227 A115584

Adjacent sequences: A230557 A230558 A230559 * A230561 A230562 A230563

Keyword

sign

Author

Paul Tek, Oct 23 2013

Status

approved