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Search: id:A114238
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| A114238 |
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C(2+2*n,2+n)*C(7+2*n,0+n) |
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+0
1
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| 1, 36, 825, 16016, 286650, 4900896, 81477396, 1330243200, 21455160012, 343138081000, 5455289950110, 86359817849760, 1362899694292500
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OFFSET
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0,2
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EXAMPLE
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if n=0 then C(2+2*0,2+0)*C(7+2*0,0+0)=C(2,2)*C(7,0)=1*1=1
if n=8 then C(2+2*8,2+8)*C(7+2*8,0+8)=C(18,10)*C(23,8)=43758*490314=21455160012
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CROSSREFS
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Cf. A062190.
Sequence in context: A028197 A028209 A028195 this_sequence A028163 A054622 A028108
Adjacent sequences: A114235 A114236 A114237 this_sequence A114239 A114240 A114241
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KEYWORD
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easy,nonn
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AUTHOR
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Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Feb 04 2006
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