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A037520
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Base 3 digits are, in order, the first n terms of the periodic sequence with initial period 2,1,0.
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0
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2, 7, 21, 65, 196, 588, 1766, 5299, 15897, 47693, 143080, 429240, 1287722, 3863167, 11589501, 34768505, 104305516, 312916548, 938749646, 2816248939, 8448746817, 25346240453, 76038721360, 228116164080, 684348492242
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Index to sequences with linear recurrences with constant coefficients, signature (3,0,1,-3)
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FORMULA
| G.f. x*(2+x) / ( (x-1)*(3*x-1)*(1+x+x^2) ). - R. J. Mathar, Nov 21 2011
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MATHEMATICA
| With[{c=PadRight[{}, 27, {2, 1, 0}]}, Table[FromDigits[Take[c, n], 3], {n, 25}]] (* From Harvey P. Dale, Nov 08 2011 *)
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CROSSREFS
| Sequence in context: A159972 A106271 A027990 * A052911 A126133 A186240
Adjacent sequences: A037517 A037518 A037519 * A037521 A037522 A037523
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KEYWORD
| nonn,base
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu)
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