A067302 Row sums of triangle A067298 and of A067304.

1, 3, 18, 160, 1752, 21504, 282304, 3867840, 54547200, 785255680, 11478167040, 169748686848, 2533556365312, 38094656593920, 576271774875648, 8761529890717696, 133776598692003840, 2050020136793604096

Offset

0,2

Links

Table of n, a(n) for n=0..17.

Formula

a(n)=sum(A067298(n, m), m=0..n ).

Bisection: a(2*k)= (k+1)*A067297(2*k)=: A067303(k), a(2*k+1)= (2*k+3)*A067297(2*k+1)/2 =: A067322(k), k>=0.

G.f.: ge(x^2) + x*go(x^2) with ge(x) g.f. of A067303 and go(x) g.f. of A067322.

Crossrefs

Sequence in context: A352638 A238302 A371020 * A361048 A212599 A052182

Adjacent sequences: A067299 A067300 A067301 * A067303 A067304 A067305

Keyword

nonn,easy

Author

Wolfdieter Lang, Feb 05 2002

Status

approved