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A082010
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a(n) = n/2 if n is even, otherwise floor(8*n/5)+1.
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2
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0, 2, 1, 5, 2, 9, 3, 12, 4, 15, 5, 18, 6, 21, 7, 25, 8, 28, 9, 31, 10, 34, 11, 37, 12, 41, 13, 44, 14, 47, 15, 50, 16, 53, 17, 57, 18, 60, 19, 63, 20, 66, 21, 69, 22, 73, 23, 76, 24, 79, 25, 82, 26, 85, 27, 89, 28, 92, 29, 95, 30, 98, 31, 101, 32, 105, 33, 108, 34, 111, 35, 114, 36, 117
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(n)= +a(n-2) +a(n-10) -a(n-12). G.f. x*(1+x+x^2)*(x^8+2*x^6-x^5+2*x^4+2*x^2-x+2) / ( (1+x+x^2+x^3+x^4)*(x^4-x^3+x^2-x+1)*(x-1)^2*(1+x)^2 ). - R. J. Mathar, Feb 20 2011
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CROSSREFS
| Sequence in context: A111361 A167160 A205377 * A113176 A113175 A109191
Adjacent sequences: A082007 A082008 A082009 * A082011 A082012 A082013
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Oct 06 2009, suggested by postings to the Sequence Fans Mailing List by Yasutoshi Kohmoto (zbi74583(AT)boat.zero.ad.jp) and Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Sep 30 2009
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