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A325736 First term of n-th difference sequence of (floor(2e*k)), k >= 0. 2
5, 0, 1, -3, 7, -15, 31, -63, 126, -245, 455, -791, 1253, -1715, 1715, 0, -6419, 24157, -67081, 162925, -364609, 767977, -1535953, 2922679, -5273325, 8931521, -13886641, 18775981, -18399241, -2035799, 79594559, -300540195, 855744647, -2151510735, 5025003039 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Table[First[Differences[Table[Floor[2E*n], {n, 0, 50}], n]], {n, 1, 50}]
CROSSREFS
Cf. A325664.
Sequence in context: A019729 A261851 A117015 * A334364 A174859 A274619
KEYWORD
easy,sign
AUTHOR
Clark Kimberling, May 23 2019
STATUS
approved

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)