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A256831 Decimal expansion of Pell factorial constant. 5
1, 1, 4, 1, 9, 8, 2, 5, 6, 9, 6, 6, 7, 7, 9, 1, 2, 0, 6, 0, 2, 8, 0, 4, 3, 3, 3, 8, 3, 6, 7, 8, 6, 0, 1, 5, 0, 8, 6, 4, 7, 3, 0, 4, 8, 2, 4, 0, 8, 5, 4, 0, 7, 9, 1, 5, 5, 6, 2, 5, 4, 3, 5, 2, 4, 4, 9, 8, 4, 3, 7, 8, 5, 4, 8, 0, 6, 2, 0, 8, 6, 0, 7, 8, 2, 5, 0, 6, 3, 7, 0, 6, 0, 9, 2, 5, 3, 3, 4, 7, 8, 1, 6, 3, 6 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..105.

FORMULA

Equals limit n->infinity A256832(n) / ((1+sqrt(2))^(n*(n+1)/2) / 2^(3*n/2)).

EXAMPLE

1.141982569667791206028043338367860150864730482408540791556...

MATHEMATICA

RealDigits[N[QPochhammer[2*Sqrt[2]-3], 105]][[1]]

CROSSREFS

Cf. A000129, A099929, A256832.

Cf. A062073, A218490, A253924.

Sequence in context: A235944 A049762 A105495 * A010644 A137615 A021990

Adjacent sequences:  A256828 A256829 A256830 * A256832 A256833 A256834

KEYWORD

nonn,cons

AUTHOR

Vaclav Kotesovec, Apr 10 2015

STATUS

approved

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Last modified January 19 21:35 EST 2018. Contains 297938 sequences.