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A021139 Decimal expansion of 1/135. 1
0, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7 (list; constant; graph; refs; listen; history; internal format)
OFFSET

0,3

FORMULA

a(n)=(1/9)*{20*(n mod 3)-10*[(n+1) mod 3]+23*[(n+2) mod 3]}-4*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava (paoloplava(AT)gmail.com), Sep 21 2009]

CROSSREFS

Sequence in context: A175998 A093825 A091494 * A020790 A199955 A196624

Adjacent sequences:  A021136 A021137 A021138 * A021140 A021141 A021142

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.