login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A106399
Binomial transform of A100060.
0
1, 1, 2, 4, 8, 16, 31, 58, 107, 200, 387, 782, 1640, 3512, 7542, 16020, 33406, 68257, 136971, 271341, 534302, 1053441, 2092840, 4206655, 8564397, 17631551, 36575711, 76137143, 158427407, 328537434, 677598776, 1388303692, 2824261172, 5704560206, 11443336382
OFFSET
1,3
COMMENTS
1 or 0 are assigned to increase or decrease in magnitude of a succession of terms in the first difference row of Zeta function heights, as recorded in A100060.
FORMULA
Use the binomial transform operation (bto) on A100060, i.e. (bto): [1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1,
EXAMPLE
a(5) = 8 = 1*1 + 4*0 + 6*1 + 4*0 + 1*1.
MATHEMATICA
nmax = 40; A100060 = (Sign[Differences[Im[ZetaZero[Range[nmax+2]]], 2]] + 1)/2; Flatten[{1, Table[1 + Sum[Binomial[n, k]*A100060[[k]], {k, 1, n}], {n, 1, nmax}]}] (* Vaclav Kotesovec, Nov 28 2017 *)
CROSSREFS
Cf. A100060.
Sequence in context: A133552 A174439 A000128 * A334636 A299026 A007800
KEYWORD
nonn
AUTHOR
Gary W. Adamson, May 01 2005
EXTENSIONS
a(11) corrected by Vaclav Kotesovec, Nov 28 2017
More terms from Vaclav Kotesovec, Nov 28 2017
STATUS
approved