Search: id:A062344
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%I A062344
%S A062344 1,1,2,1,4,6,1,6,15,20,1,8,28,56,70,1,10,45,120,210,252,1,12,66,220,
%T A062344 495,792,924,1,14,91,364,1001,2002,3003,3432,1,16,120,560,1820,4368,
%U A062344 8008,11440,12870,1,18,153,816,3060,8568,18564,31824,43758,48620,1,20
%N A062344 Triangle of C(2n,k) with n >= k.
%D A062344 E. H. M. Brietzke, An identity of Andrews ..., Discrete Math., 308 (2008), 
               4246-4262.
%H A062344 <a href="Sindx_Pas.html#Pascal">Index entries for triangles and arrays 
               related to Pascal's triangle</a>
%F A062344 a(n, k)=a(n, k-1)*((2n+1)/k-1) with a(n, 0)=1
%e A062344 Rows start (1), (1,2), (1,4,6), (1,6,15,20) etc.
%Y A062344 Columns include (sometimes truncated) A000012, A005843, A000384, A002492, 
               A053134 etc. Right hand side includes A000984, A001791, A002694, 
               A002696 etc. Row sums are A032443. Row alternate differences (e.g. 
               6-4+1=3 or 20-15+6-1=10) are A001700.
%Y A062344 Cf. A122366.
%Y A062344 Sequence in context: A002987 A063872 A033884 this_sequence A033877 A059369 
               A098473
%Y A062344 Adjacent sequences: A062341 A062342 A062343 this_sequence A062345 A062346 
               A062347
%K A062344 nonn,tabl
%O A062344 0,3
%A A062344 Henry Bottomley (se16(AT)btinternet.com), Jul 06 2001

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