Search: id:A055461
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%I A055461
%S A055461 1,4,1,9,4,1,16,9,4,1,25,16,9,4,1,36,25,16,9,4,1,49,36,25,16,9,4,1,64,
%T A055461 49,36,25,16,9,4,1,81,64,49,36,25,16,9,4,1,100,81,64,49,36,25,16,9,4,1,
%U A055461 121,100,81,64,49,36,25,16,9,4,1,144,121,100,81,64,49,36,25,16,9,4,1
%N A055461 Square decrescendo subsequences: triangle T(n,k) = (n-k)^2, n >= 1, 0 
               <= k < n.
%F A055461 a(n) = A004736(n)^2
%e A055461 1; 4 1; 9 4 1; 16 9 4 1; etc.
%Y A055461 Sequence in context: A085383 A153265 A085691 this_sequence A104796 A132020 
               A143864
%Y A055461 Adjacent sequences: A055458 A055459 A055460 this_sequence A055462 A055463 
               A055464
%K A055461 easy,nonn,tabl
%O A055461 1,2
%A A055461 Henry Bottomley (se16(AT)btinternet.com), Jun 26 2000

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