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1, 8, 32, 128, 512, 2048, 8192, 32768, 131072, 524288, 2097152, 8388608, 33554432, 134217728, 536870912, 2147483648, 8589934592, 34359738368, 137438953472, 549755813888, 2199023255552, 8796093022208, 35184372088832
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Binomial transform of A081632. Inverse binomial transform of A081655.
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FORMULA
| a(0)=1, a(n)=2*4^n, n>0 G.f.: (1+4x)/(1-4x) E.g.f. 2exp(4x)-1
With interpolated zeros, this is 2^n-0^n+(-2)^n. - Paul Barry (pbarry(AT)wit.ie), Sep 06 2003
a(n)=A081294(n+1), n>0. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 17 2008]
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EXAMPLE
| a(0)=2*4^0-0^0=2-1=1 (use 0^0=1).
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CROSSREFS
| Sequence in context: A036393 A196097 A183915 * A200153 A188121 A045684
Adjacent sequences: A081651 A081652 A081653 * A081655 A081656 A081657
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KEYWORD
| easy,nonn
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AUTHOR
| Paul Barry (pbarry(AT)wit.ie), Mar 26 2003
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