A158897 - OEIS

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A158897

The elements of A059100 at indices of triangular numbers, padded with zeros.

0

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

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..97.

FORMULA

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

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

CROSSREFS

Sequence in context: A117006 A294345 A073764 * A033458 A068308 A028651

Adjacent sequences: A158894 A158895 A158896 * A158898 A158899 A158900

KEYWORD

nonn

AUTHOR

Paul Curtz, Mar 29 2009

EXTENSIONS

Edited and extended by R. J. Mathar, Apr 04 2009

STATUS

approved