0,4

Table of n, a(n) for n=0..10.

G.f.: A=x^2(xM+1)^3((xR)')^3(1/R) where M is the generating function for the Motzkin numbers and R is the generating function for the Riordan numbers.

Cf. A139262.

Sequence in context: A212505 A024453 A176027 * A261043 A063025 A187917

Adjacent sequences: A139260 A139261 A139262 * A139264 A139265 A139266

nonn

Lifoma Salaam, Apr 12 2008

approved