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Search: id:A156922
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| 1, 15, 129, 877, 5280, 29658, 159742, 838038, 4323003, 22057825, 111750519, 563535483, 2833221970, 14216330916, 71243079660, 356731958812, 1785306330981, 8931761831331, 44675371382365
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OFFSET
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0,2
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FORMULA
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a(n) = 14*a(n-1)-75*a(n-2)+196*a(n-3)-263*a(n-4)+174*a(n-5)-45*a(n-6)
a(n) = (4*n^2-108*n*3^n+24*n-378*3^n+375*5^n+35)/32
G.f.: GF1(z;RHCnr=3) = (1+z-6*z^2)/((1-5*z)*(1-3*z)^2*(1-z)^3)
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CROSSREFS
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Other columns A000340, A156923, A156924.
Equals A156920 third right hand column.
Equals A156919 third right hand column divided by 4.
Equals A142963 third right hand column divided by 2^n.
Sequence in context: A073509 A127595 A056579 this_sequence A155656 A027630 A027629
Adjacent sequences: A156919 A156920 A156921 this_sequence A156923 A156924 A156925
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KEYWORD
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easy,nonn
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AUTHOR
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Johannes W. Meijer (meijgia(AT)hotmail.com), Feb 20 2009
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