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A094028 Expansion of 1/((1-x)(1-100x)). +0
3
1, 101, 10101, 1010101, 101010101, 10101010101, 1010101010101, 101010101010101, 10101010101010101, 1010101010101010101, 101010101010101010101, 10101010101010101010101 (list; graph; listen)
OFFSET

0,2

COMMENT

As binary numbers, these are 1,5,21,85,... the partial sums of 4^n (see A002450); binary of A001045(2n+2). Partial sums of 100^n.

Odd terms of A056830. - Alexandre Wajnberg (alexandre.wajnberg(AT)ulb.ac.be), May 31 2005

REFERENCES

Clifford A. Pickover, A Passion for Mathematics, Wiley, 2005; see p. 60.

FORMULA

a(n) = 1+100*(100^n-1)/99. - njas, Apr 20 2008

a(n)=100^(n+1)/99-1/99; a(n)=A094027(2n+1).

CROSSREFS

Sequence in context: A048177 A027900 A017764 this_sequence A065074 A113628 A135375

Adjacent sequences: A094025 A094026 A094027 this_sequence A094029 A094030 A094031

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Apr 22 2004

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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