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Search: id:A132064
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| A132064 |
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Numbers multiplied by 4 and written backwards. |
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+0
1
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| 1, 4, 61, 442, 8671, 48643, 275491, 4691011, 44046781, 421781671, 4866217861, 44417846491
(list; graph; listen)
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OFFSET
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1,2
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FORMULA
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a(n) = reverse(4*a(n-1)) where a(1) = 1
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EXAMPLE
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a(4) = reverse(4*a(3)) = reverse(4*reverse(4*a(2))) = reverse(4*reverse(4*reverse(4*a(1)))) = reverse(4*reverse(4*4)) = reverse(4*61) = reverse(244) = 442
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CROSSREFS
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Cf. A133361, A045539.
Sequence in context: A129452 A131014 A118005 this_sequence A102193 A166028 A054958
Adjacent sequences: A132061 A132062 A132063 this_sequence A132065 A132066 A132067
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KEYWORD
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base,nonn
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AUTHOR
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Rachit Agrawal (rachit_agrawal(AT)daiict.ac.in), Oct 30 2007
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