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Search: id:A108195
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| 5, 13, 23, 35, 49, 65, 83, 103, 125, 149, 175, 203, 233, 265, 299, 335, 373, 413, 455, 499, 545, 593, 643, 695, 749, 805, 863, 923, 985, 1049, 1115, 1183, 1253, 1325, 1399, 1475, 1553, 1633, 1715, 1799, 1885, 1973, 2063, 2155, 2249, 2345, 2443, 2543, 2645
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Eric Weisstein's World of Mathematics, Greek Cross
Eric Weisstein's World of Mathematics, Gaullist Cross
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EXAMPLE
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....... +---+ ......... The Cross of Lorraine
....... | + | ......... having n=2 crossbeams
... +---+---+---+ ..... consists of a(2)=13 squares
... | + | + | + |
... +---+---+---+
....... | + |
+---+---+---+---+---+
| + | + | + | + | + |
+---+---+---+---+---+
....... | + |
....... +---+
....... | + |
....... +---+
....... | + |
....... +---+
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MAPLE
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with (combinat):seq(fibonacci(3, n)+n-8, n=3..51); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 07 2008
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CROSSREFS
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Cf. A002522.
Sequence in context: A129806 A125830 A049882 this_sequence A074798 A031336 A099958
Adjacent sequences: A108192 A108193 A108194 this_sequence A108196 A108197 A108198
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KEYWORD
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nonn
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AUTHOR
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Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 15 2005
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