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A037503 Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 1,0,2. 0
1, 10, 102, 1021, 10210, 102102, 1021021, 10210210, 102102102, 1021021021, 10210210210, 102102102102, 1021021021021, 10210210210210, 102102102102102, 1021021021021021 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

FORMULA

a(n)=10*a(n-1)+(1/3)*{-(n mod 3)+2*[(n+1) mod 3]+2*[(n+2) mod 3]}, with a(0)=0 [From Paolo P. Lava (paoloplava(AT)gmail.com), Jul 30 2009]

CROSSREFS

Sequence in context: A078283 A045874 A078282 * A037680 A038378 A158242

Adjacent sequences:  A037500 A037501 A037502 * A037504 A037505 A037506

KEYWORD

nonn,base

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 14 03:03 EST 2012. Contains 205567 sequences.