A321626 Row sums of A321625.

1, 2, 6, 22, 58, 210, 594, 1994, 5990, 19222, 59454, 187310, 585414, 1834118, 5747062, 17988022, 56373274, 176475314, 552911106, 1731322458, 5423249418, 16984237522, 53196773962, 166608743122, 521821551746, 1634340052922, 5118737796770, 16031890491354

Offset

0,2

Links

Table of n, a(n) for n=0..27.

Mathematica

(* The function RiordanSquare is defined in A321620. *)
SwingingFactorial = (1 + x/(1 - 4x^2))/Sqrt[1 - 4x^2];
M = RiordanSquare[SwingingFactorial, 28]; Map[Total, M]

Crossrefs

Cf. A321625, A321620.

Sequence in context: A306967 A324913 A027561 * A126171 A228396 A381385

Adjacent sequences: A321623 A321624 A321625 * A321627 A321628 A321629

Keyword

nonn

Author

Peter Luschny, Nov 22 2018

Status

approved