A077686 - OEIS

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A077686

2^(n-1) - (prime(n) mod n).

0

1, 1, 2, 5, 15, 31, 61, 125, 251, 503, 1015, 2047, 4094, 8191, 16382, 32763, 65528, 131065, 262134, 524277, 1048566, 2097139, 4194290, 8388591, 16777194, 33554409, 67108842, 134217705, 268435434, 536870889, 1073741821, 2147483645, 4294967291, 8589934589

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

LINKS

Table of n, a(n) for n=1..34.

CROSSREFS

Sequence in context: A191313 A078528 A309272 * A034499 A299159 A006451

Adjacent sequences: A077683 A077684 A077685 * A077687 A077688 A077689

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Feb 12 2003

STATUS

approved