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T(n,k) = M0(n,k,f(n,k)), where M0 is given by A050176 and f(n,k) is the 4th-from-least t for which M0(n,k,t) is not 0.
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%I #4 Mar 30 2012 18:57:01

%S 1,1,1,1,7,1,1,8,8,1,1,9,35,9,1,1,10,44,44,10,1,1,11,54,154,54,11,1,1,

%T 12,65,208,208,65,12,1,1,13,77,273,637,273,77,13,1,1,14,90,350,910,

%U 910,350,90,14,1,1,15,104,440,1260,2548,1260,440,104,15,1

%N T(n,k) = M0(n,k,f(n,k)), where M0 is given by A050176 and f(n,k) is the 4th-from-least t for which M0(n,k,t) is not 0.

%C f(n,k)=2 if 3<=k<=[ (n-1)/2 ], else f(n,k)=2k-n+3.

%e Rows: {1}; {1,1}; {1,7,1}: {1,8,8,1}; ... (all palindromes)

%K nonn,tabl

%O 7,5

%A _Clark Kimberling_