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A028302 prime(n)*Catalan(n). 0
2, 6, 25, 98, 462, 1716, 7293, 27170, 111826, 487084, 1822366, 7696444, 30458900, 115000920, 455657715, 1873956510, 7649042610, 29135960700, 118406633730, 466052549820, 1786037492460, 7227122527560, 28473947932950 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..23.

FORMULA

a(n) = A000040(n)*A000108(n).

MATHEMATICA

Table[Prime[n]CatalanNumber[n], {n, 30}] (* Harvey P. Dale, Jul 22 2016 *)

CROSSREFS

Cf. A000040, A000108.

Sequence in context: A027104 A019048 A289604 * A064811 A074418 A330637

Adjacent sequences:  A028299 A028300 A028301 * A028303 A028304 A028305

KEYWORD

nonn,easy

AUTHOR

fink(AT)cadvision.com (A.R.FINK)

EXTENSIONS

More terms from James A. Sellers

STATUS

approved

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Last modified September 22 16:50 EDT 2020. Contains 337291 sequences. (Running on oeis4.)