Search: id:A104675
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%I A104675
%S A104675 6,14,24,36,50,66,84,104,126,150,176,204,234,266,300,336,374,414,456,
%T A104675 500,546,594,644,696,750,806,864,924,986,1050,1116,1184,1254,1326,1400,
%U A104675 1476,1554
%N A104675 C(n+1,n+0)*C(n+6,1)
%F A104675 a(n) = (n+1)(n+6) = A028557(n+1) . - R. J. Mathar (mathar(AT).strw.leidenuniv.nl), 
               May 19 2008
%F A104675 a(n)=2*n+a(n-1)+4 (with a(1)=6) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), 
               Nov 08 2009]
%e A104675 If n=0 then C(0+1,0+0)*C(0+6,1)= C(1,0)*C(6,1)=1*6=6
%e A104675 If n=5 then C(5+1,5+0)*C(5+6,1)= C(6,5)*C(11,1)=6*11=66
%e A104675 For n=2, a(2)=2*2+6+4=14; n=3, a(3)=2*3+14+4=24; n=4, a(4)=2*4+24+4=36 
               [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 08 2009]
%p A104675 with (combinat):seq(fibonacci(3, n)+n-7, n=3..40); - Zerinvary Lajos 
               (zerinvarylajos(AT)yahoo.com), Jun 07 2008
%p A104675 with(finance):seq(add(cashflows([2,k,k], 0 ),k=2..n),n=2..38); - Zerinvary 
               Lajos (zerinvarylajos(AT)yahoo.com), Jun 22 2008
%Y A104675 Cf. A062190.
%Y A104675 Cf. A002522.
%Y A104675 Sequence in context: A005281 A120345 A107400 this_sequence A028557 A083657 
               A010740
%Y A104675 Adjacent sequences: A104672 A104673 A104674 this_sequence A104676 A104677 
               A104678
%K A104675 easy,nonn
%O A104675 0,1
%A A104675 Zerinvary Lajos (zlaja(AT)freemail.hu), Apr 22 2005

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