OFFSET
0,3
LINKS
Robert Israel, Table of n, a(n) for n = 0..114
Eric Weisstein's World of Mathematics, q-Factorial.
MAPLE
a:= n-> Re(mul(((1+I)^j-1)/((1+I)-1), j=1..n)):
seq(a(n), n=0..20); # Alois P. Heinz, Sep 14 2016
MATHEMATICA
Re@Table[QFactorial[n, 1 + I], {n, 0, 20}]
CROSSREFS
KEYWORD
sign
AUTHOR
Vladimir Reshetnikov, Sep 13 2016
STATUS
approved