A325739 First term of n-th difference sequence of (floor(Pi*k)), k >= 0.

3, 0, 0, 0, 0, 0, 0, 1, -8, 36, -120, 330, -792, 1716, -3431, 6420, -11320, 18768, -28764, 38760, -38760, 1, 149204, -571780, 1613128, -3964050, 8934120, -18874260, 37748521, -71705864, 129080160, -218205280, 339081224, -459957168, 459957168, 1, -1749692736

Offset: 1

Author

Clark Kimberling, May 23 2019

Keywords

• easy
• sign

Links

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

Crossrefs

Cf. A022844, A325664.

Programs

Mathematica

Table[First[Differences[Table[Floor[Pi*n], {n, 0, 50}], n]], {n, 1, 50}]