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A021442 Decimal expansion of 1/438. 0
0, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2, 2, 8, 3, 1, 0, 5, 0, 2 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..98.

FORMULA

a(n) = (1/32)*(-17*(n mod 8) + 7*((n+1) mod 8) + 11*((n+2) mod 8) + 23*((n+3) mod 8) - 21*((n+4) mod 8) + 3*((n+5) mod 8) - 5*((n+6) mod 8) + 23*((n+7) mod 8)) - 5*(binomial(2*n,n) mod 2), with n >= 0. [Paolo P. Lava, Nov 11 2009]

EXAMPLE

0.0022831050228310502283105...

MATHEMATICA

Join[{0, 0}, RealDigits[1/438, 10, 120][[1]]] (* or *) PadRight[{0}, 120, {5, 0, 2, 2, 8, 3, 1, 0}] (* Harvey P. Dale, Jan 05 2020 *)

PROG

(MAGMA) n:=1/438; [0, 0] cat Reverse(Intseq(Floor(10^100*n))); // Vincenzo Librandi, Jan 06 2020

CROSSREFS

Sequence in context: A331639 A121860 A283990 * A296851 A331750 A166853

Adjacent sequences:  A021439 A021440 A021441 * A021443 A021444 A021445

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified February 27 07:53 EST 2021. Contains 341649 sequences. (Running on oeis4.)