A155482 Signed-digit binary expansion of Pi/4

1, 0, -1, 0, 1, -1, 0, 1, -1, 0, 0, 0, 1, 0, 0, 0, 0, 0, -1, 1, 0, -1, 1, -1, 1, -1, 1, -1, 0, 0, 1, -1, 0, 0, 1, -1, 0, 0, 0, 1, -1, 1, 0, -1, 1, -1, 0, 0, 1, 0, -1, 0, 0, 0, 1, -1, 0, 0, 1, 0, -1, 1, -1, 0, 1, 0, -1, 0, 0, 1, -1, 0, 1, 0, -1, 0, 0, 1, 0, -1, 0, 1, 0, -1, 0, 0, 1, -1, 1, -1, 0, 0, 1

Offset

0,1

Links

Table of n, a(n) for n=0..92.

Prog

(PARI) r=Pi/4; for(k=0, 99, if(abs(r)<1/2, d=0, d=sign(r)); r=2*(r-d); print1(d, ", "))

Crossrefs

Cf. A004601, A155996.

Sequence in context: A188044 A287523 A288932 * A174205 A334413 A114483

Adjacent sequences: A155479 A155480 A155481 * A155483 A155484 A155485

Keyword

base,sign

Author

Jaume Oliver Lafont, Jan 23 2009

Extensions

Corrected and cross-reference added by Jaume Oliver Lafont, Feb 05 2009

Status

approved