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Search: id:A050620
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A050620 Quotients arising from sequence A035014. +0
3
2, 11, 43, 209, 1042, 6771, 26823, 130599, 651237, 3255306, 21158903, 83821639, 408121757, 2035115566, 13224589033, 52388661704, 331370112102, 1691563962301, 6567827879588, 41430886596044, 211450306579272 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n) = a(n-1)/2 + 5^(n-1)*(4-[a(n-1) mod 2])/2.

CROSSREFS

Cf. A035014.

Sequence in context: A128241 A141190 A048500 this_sequence A027253 A066058 A153440

Adjacent sequences: A050617 A050618 A050619 this_sequence A050621 A050622 A050623

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1999.

EXTENSIONS

Formula and more terms from Antonio G. Astudillo (afg_astudillo(AT)hotmail.com), Jun 17 2001

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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