A321204 Row sums of Riordan triangle A319203.

1, 1, 0, -2, -2, 4, 11, -3, -46, -38, 152, 334, -301, -1855, -719, 7869, 12450, -23422, -87520, 12924, 447028, 458664, -1699630, -4308816, 3528771, 26104199, 12852166, -118868366, -207528889, 368534179, 1517678456, -109794866, -8068372174, -9080718086, 31552958156, 85735418464, -63813069724, -530936155928, -300127192606

Offset

0,4

Comments

The alternating row sums are given in A321205.

Links

Table of n, a(n) for n=0..38.

Formula

G.f: f(x)/(1 - x*f(x)) where f(x) = F^([-1])(x)/x with F^{[-1]}(y) the compositional inverse of F(x) = x/(1 - x^2 - x^3). The expansion of f is given in A319201.

Crossrefs

Cf. A319201, A319203, A321205.

Sequence in context: A173100 A092635 A270549 * A196856 A196707 A196950

Adjacent sequences: A321201 A321202 A321203 * A321205 A321206 A321207

Keyword

sign,easy

Author

Wolfdieter Lang, Nov 09 2018

Status

approved