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A158897 The elements of A059100 at indices of triangular numbers, padded with zeros. +0
1
6, 0, 11, 0, 0, 18, 0, 0, 0, 27, 0, 0, 0, 0, 38, 0, 0, 0, 0, 0, 51, 0, 0, 0, 0, 0, 0, 66, 0, 0, 0, 0, 0, 0, 0, 83, 0, 0, 0, 0, 0, 0, 0, 0, 102, 0, 0, 0, 0, 0, 0, 0, 0, 0, 123, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 146, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 171, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 198, 0, 0, 0, 0, 0, 0 (list; graph; listen)
OFFSET

1,1

FORMULA

a(t)=A059100(i+1) if t=A000217(i), else a(t)=0.

a(n)=A141620(n-1)+A158405(n+1).

CROSSREFS

Cf. A144396.

Sequence in context: A083573 A117006 A073764 this_sequence A033458 A028651 A028635

Adjacent sequences: A158894 A158895 A158896 this_sequence A158898 A158899 A158900

KEYWORD

nonn

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Mar 29 2009

EXTENSIONS

Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 04 2009

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Last modified December 17 13:29 EST 2009. Contains 170826 sequences.


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