A137751 a(n) = number of missing residues in the Fibonacci sequence mod the n-th prime number.

0, 0, 0, 0, 4, 4, 4, 7, 4, 19, 12, 8, 22, 10, 32, 16, 22, 36, 16, 27, 16, 30, 20, 72, 28, 66, 24, 74, 60, 80, 30, 49, 28, 106, 88, 114, 44, 40, 40, 36, 67, 119, 72, 44, 48, 183, 181, 54, 56, 149, 212, 90, 138, 94, 64, 178, 156, 102

Offset

1,5

Links

Alois P. Heinz, Table of n, a(n) for n = 1..10000

Casey Mongoven, Absent Residues Primes no. 1; electro-acoustic music created with this sequence.

Example

The 5th prime number is 11. The Fibonacci sequence mod 11 is {0,1,1,2,3,5,8,2,10,1,0,1,...} - a periodic sequence. There are 4 residues which do not occur in this sequence, namely {4,6,7,9}. So a(5) = 4.

Crossrefs

Cf. A118965, A137750, A000045.

Sequence in context: A295641 A171815 A023958 * A244481 A379740 A211638

Adjacent sequences: A137748 A137749 A137750 * A137752 A137753 A137754

Keyword

nonn

Author

Casey Mongoven, Feb 10 2008

Status

approved