A325841 First term of n-th difference sequence of (round(k*sqrt(3))), k >= 0.

2, -1, 2, -3, 4, -6, 12, -28, 64, -136, 272, -528, 1024, -2016, 4032, -8128, 16383, -32878, 65621, -130188, 256158, -497420, 946352, -1748000, 3100078, -5200300, 8048666, -10897033, 10897061, -435, -41847869, 161227527, -461566314, 1165457645, -2740966304

Offset

1,1

Links

Clark Kimberling, Table of n, a(n) for n = 1..200

Mathematica

Table[First[Differences[Table[Round[Sqrt[3]*n], {n, 0, 50}], n]], {n, 1, 50}]

Crossrefs

Cf. A325664.

Sequence in context: A173497 A022875 A350404 * A076480 A002730 A081664

Adjacent sequences: A325838 A325839 A325840 * A325842 A325843 A325844

Keyword

easy,sign

Author

Clark Kimberling, Jun 09 2019

Status

approved