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A035028 First differences of A002002. 2
4, 20, 104, 552, 2972, 16172, 88720, 489872, 2719028, 15157188, 84799992, 475894200, 2677788492, 15102309468, 85347160608, 483183316512, 2739851422820, 15558315261812, 88462135512712, 503569008273992, 2869602773253884, 16368396446913420, 93449566652932784 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..22.

MATHEMATICA

Differences[CoefficientList[Series[((1-x)/Sqrt[1-6x+x^2]-1)/2, {x, 0, 30}], x]] (* Harvey P. Dale, Jun 04 2011 *)

CROSSREFS

Cf. A002002, A035029. a(n)=T(n, n-3), array T as in A049600.

Sequence in context: A082761 A076035 A120978 * A104550 A089382 A291089

Adjacent sequences:  A035025 A035026 A035027 * A035029 A035030 A035031

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Harvey P. Dale, Jun 04 2011

STATUS

approved

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Last modified February 22 05:17 EST 2019. Contains 320385 sequences. (Running on oeis4.)