A144249 - OEIS

A144249

Apply partial sum operator twice to A000594.

1, -22, 207, -1036, 2551, 90, -19115, 46160, -2208, -166496, 203828, 203208, -375150, -551652, 489006, 2516800, -2361340, -4512048, 3998664, 5399616, 2581080, -13068144, -10074096, 14208912, 12992695, 25642190, -34987395

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..27.

MATHEMATICA

lst={}; s1=0; s2=0; Do[s1=s1+RamanujanTau[n]; s2=s2+s1; AppendTo[lst, s2], {n, 5!}]; lst

CROSSREFS

Cf. A000594.

Partial sums of A144248.

Sequence in context: A230896 A031202 A274982 * A280475 A010828 A022714

Adjacent sequences: A144246 A144247 A144248 * A144250 A144251 A144252

KEYWORD

sign

AUTHOR

Vladimir Joseph Stephan Orlovsky, Sep 16 2008

STATUS

approved