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A105671
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a(2n) = Lucas(2n+3)^2, a(2n+1) = Lucas(2n+1)^2.
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0
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16, 1, 121, 16, 841, 121, 5776, 841, 39601, 5776, 271441, 39601, 1860496, 271441, 12752041, 1860496, 87403801, 12752041, 599074576, 87403801, 4106118241, 599074576, 28143753121, 4106118241, 192900153616, 28143753121
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| This sequence is related to several other sequences on squares. In reference to the link "Sequences in Context", (a(n)) = vessigcycseq. Note that the identity "vessigcyc = jessigcyc + lessigcyc + tessigcyc" holds.
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FORMULA
| Expansion of (-x^4-8x^2+15x-16)/((x-1)(x^4-7x^2+1))
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MATHEMATICA
| a[n_?EvenQ] := LucasL[n+3]^2; a[n_?OddQ] := LucasL[n]^2; Table[a[n], {n, 0, 25}] (* From Jean-François Alcover, Sep 28 2011 *)
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PROG
| Floretion Algebra Multiplication Program, FAMP Code: 1vessigcycseq[ + 4.75'i - .75'j - .25'k + 4.75i' - .75j' - .25k' - 1.75'ii' - 3.75'jj' + 4.25'kk' - .25'ij' + 1.25'ik' - .25'ji' + 2.75'jk' + 1.25'ki' + 2.75'kj' + 2.25e]
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CROSSREFS
| Cf. A081071.
Sequence in context: A040271 A036179 A099923 * A145828 A095876 A095851
Adjacent sequences: A105668 A105669 A105670 * A105672 A105673 A105674
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KEYWORD
| easy,nonn
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AUTHOR
| Creighton Dement (creighton.k.dement(AT)uni-oldenburg.de), Apr 17 2005
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