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A047028 T(n,n+3), array T given by A047020. 0
1, 4, 14, 48, 170, 611, 2214, 8135, 30171, 112589, 423114, 1598998, 6068246, 23125097, 88441638, 339234219, 1304756453, 5030574435, 19436510637, 75241443220, 291780678294, 1133270649257, 4407906226851, 17167267446803 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..23.

CROSSREFS

Sequence in context: A085280 A007851 A014325 * A220819 A047138 A111299

Adjacent sequences:  A047025 A047026 A047027 * A047029 A047030 A047031

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified October 23 17:37 EDT 2021. Contains 348215 sequences. (Running on oeis4.)