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Search: id:A061983
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| A061983 |
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3^n - (3n^2 + n + 2)/2. |
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+0
2
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| 0, 0, 1, 11, 54, 202, 671, 2109, 6460, 19556, 58893, 176959, 531218, 1594062, 4782667, 14348561, 43046328, 129139720, 387419993, 1162260915, 3486783790, 10460352530, 31381058871, 94143178021, 282429535604, 847288608492
(list; graph; listen)
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OFFSET
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0,4
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LINKS
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Harry J. Smith, Table of n, a(n) for n=0,...,200
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PROGRAM
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(PARI) { for (n=0, 200, write("b061983.txt", n, " ", 3^n - (3*n^2 + n + 2)/2) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 29 2009]
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CROSSREFS
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Column of A061980.
Sequence in context: A003867 A059135 A110159 this_sequence A079884 A050900 A153449
Adjacent sequences: A061980 A061981 A061982 this_sequence A061984 A061985 A061986
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KEYWORD
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nonn
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AUTHOR
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Henry Bottomley (se16(AT)btinternet.com), May 24 2001
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