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A007538 A self-generating sequence: there are a(n) 3's between successive 2's.
(Formerly M0432)
+0
7
2, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 3 (list; graph; listen)
OFFSET

1,1

REFERENCES

Problem A-6, Amer. Math. Monthly, 101 (1994), 727-728.

Problem, Math. Mag., 67 (No. 2, 1994), 157-158.

FORMULA

a(n)=[ n*(1+sqrt(3)) ]-[ (n-1)*(1+sqrt(3)) ].

CROSSREFS

Sequence in context: A096006 A131294 A102313 this_sequence A025076 A110006 A137779

Adjacent sequences: A007535 A007536 A007537 this_sequence A007539 A007540 A007541

KEYWORD

nonn,easy,nice

AUTHOR

njas, Simon Plouffe (plouffe(AT)math.uqam.ca)

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.


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