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Search: id:A141324
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| 0, 1, 1, 10, 10, 19, 19, 37, 28, 37, 37, 37, 37, 46, 73, 55, 55, 64, 73, 73, 64, 82, 73, 109, 100, 118, 91, 109, 109, 118, 127, 127, 109, 136, 145, 127, 145, 136, 145, 163, 145, 154, 172, 190, 127, 181, 199, 208, 217, 190, 181, 235, 235, 253, 226, 217, 226, 235, 262
(list; graph; listen)
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OFFSET
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0,4
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FORMULA
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a(n)=A007953(A002452(n)).
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MAPLE
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A002452 := proc(n) (9^n-1)/8 ; end: A007953 := proc(n) local i ; add(i, i=convert(n, base, 10)) ; end: A141324 := proc(n) A007953(A002452(n)) ; end: for n from 0 to 80 do printf("%d, ", A141324(n)) ; od: # R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 09 2008
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CROSSREFS
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Cf. A017173.
Sequence in context: A111381 A063660 A047879 this_sequence A097041 A040091 A022093
Adjacent sequences: A141321 A141322 A141323 this_sequence A141325 A141326 A141327
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KEYWORD
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nonn,base
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Aug 03 2008
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EXTENSIONS
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Extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 09 2008
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