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A173398 (A007318 + A112468)/2 2
1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 4, 2, 1, 1, 1, 7, 4, 3, 1, 1, 1, 11, 7, 9, 3, 1, 1, 1, 16, 11, 22, 9, 4, 1, 1, 1, 22, 16, 46, 22, 16, 4, 1, 1, 1, 29, 22, 86, 46, 50, 16, 5, 1, 1, 1, 37, 29, 148, 86, 130, 50, 25, 5, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,9

COMMENTS

If first row is omitted,same as A131054.

LINKS

Table of n, a(n) for n=1..66.

EXAMPLE

Array starts:

1,1,1,1

1,1,2,2

1,1,4,4

1,1,7,7

CROSSREFS

Cf. A007318, A112468, A131054

Sequence in context: A066441 A300384 A252890 * A104404 A162512 A162510

Adjacent sequences:  A173395 A173396 A173397 * A173399 A173400 A173401

KEYWORD

nonn,tabl

AUTHOR

Mark Dols, Feb 17 2010, Feb 21 2010

STATUS

approved

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Last modified June 20 05:01 EDT 2019. Contains 324229 sequences. (Running on oeis4.)