

A105598


Partial sums of central numbers for a Moebiusbinomial triangle.


2



1, 2, 3, 4, 4, 5, 6, 7, 8, 9, 10, 11, 11, 12, 13, 14, 15, 16, 17, 18, 18, 19, 20, 21, 22, 23, 24, 24, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 39, 39, 40, 41, 42, 43, 44, 45, 45, 46, 47, 48, 49, 50, 51, 52, 52, 53, 54, 54, 55, 56, 57, 58, 58, 59, 60, 61, 62
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OFFSET

0,2


COMMENTS



LINKS



FORMULA

a(n)=sum{k=0..n, binomial(abs(mu(k)), abs(mu(floor(k/2))))}


MATHEMATICA

Accumulate[Table[Binomial[Abs[MoebiusMu[x]], Abs[MoebiusMu[Floor[x/2]]]], {x, 0, 80}]] (* Harvey P. Dale, Mar 13 2014 *)


CROSSREFS



KEYWORD

easy,nonn


AUTHOR



STATUS

approved



