A109341 Take a deck of 52 cards face-down, split it in half and flip one deck and reinsert it into the other deck such that the cards are alternatingly face up and face down. This sequence is the number of face-up cards after repeating this process n times.

0, 26, 26, 26, 24, 26, 26, 26, 16, 26, 26, 26, 24, 26, 26, 26, 0, 26, 26, 26, 24, 26, 26, 26, 16, 26, 26, 26, 24, 26, 26, 26, 0, 26, 26, 26, 24, 26, 26, 26, 16, 26, 26, 26, 24, 26, 26, 26, 0, 26, 26, 26, 24, 26, 26, 26, 16, 26, 26, 26, 24, 26, 26, 26, 0

Offset

0,2

Links

Table of n, a(n) for n=0..64.

Crossrefs

Sequence in context: A023468 A261309 A122163 * A010865 A214482 A003900

Adjacent sequences: A109338 A109339 A109340 * A109342 A109343 A109344

Keyword

nonn

Author

Douglas Stones (dssto1(AT)student.monash.edu.au), Aug 20 2005

Status

approved