A050178 T(n,k)=M0(n,k,f(n,k)), where M0 is given by A050176 and f(n,k) is the 3rd-from-least t for which M0(n,k,t) is not 0.

1, 1, 1, 1, 5, 1, 1, 6, 6, 1, 1, 7, 20, 7, 1, 1, 8, 27, 27, 8, 1, 1, 9, 35, 75, 35, 9, 1, 1, 10, 44, 110, 110, 44, 10, 1, 1, 11, 54, 154, 275, 154, 54, 11, 1, 1, 12, 65, 208, 429, 429, 208, 65, 12, 1, 1, 13, 77, 273, 637, 1001, 637, 273, 77, 13, 1, 1, 14, 90, 350, 910

Offset

5,5

Comments

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

Links

Table of n, a(n) for n=5..75.

Example

Rows: {1}; {1,1}; {1,5,1}; {1,6,6,1}; ... (all palindromes)

Crossrefs

Sequence in context: A259975 A028313 A173119 * A297986 A298635 A171146

Adjacent sequences: A050175 A050176 A050177 * A050179 A050180 A050181

Keyword

nonn,tabl

Author

Clark Kimberling

Status

approved