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A047153 T(n,n-1), array T as in A047150. 0
1, 3, 8, 27, 90, 320, 1170, 4243, 15700, 58415, 219547, 831826, 3160495, 12062741, 46187360, 177436402, 683765925, 2640846975, 10221025773, 39630943814, 153924315307, 598776610777, 2332494389552, 9097468059843 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..24.

CROSSREFS

Sequence in context: A148838 A148839 A148840 * A281347 A000238 A259811

Adjacent sequences:  A047150 A047151 A047152 * A047154 A047155 A047156

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 24 10:48 EDT 2019. Contains 323529 sequences. (Running on oeis4.)