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A320483 Row 4 of array in A320500. 1
1, 12, 30, 110, 382, 1270, 4298, 14560, 49204 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..9.

CROSSREFS

Cf. A320500.

Sequence in context: A301775 A175157 A286659 * A260417 A117313 A080563

Adjacent sequences:  A320480 A320481 A320482 * A320484 A320485 A320486

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Oct 22 2018, based on email from Don Knuth, Oct 20 2018

STATUS

approved

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Last modified September 23 08:09 EDT 2020. Contains 337295 sequences. (Running on oeis4.)