A109936 Composite numbers between largest n-digit prime and the smallest (n+1) digit prime.

8, 9, 10, 98, 99, 100, 998, 999, 1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 9974, 9975, 9976, 9977, 9978, 9979, 9980, 9981, 9982, 9983, 9984, 9985, 9986, 9987, 9988, 9989, 9990, 9991, 9992, 9993, 9994, 9995, 9996, 9997, 9998, 9999, 10000

Offset

1,1

Links

Table of n, a(n) for n=1..44.

Mathematica

Flatten[Table[Range[NextPrime[10^n, -1]+1, NextPrime[10^n]-1], {n, 5}]] (* Harvey P. Dale, Nov 03 2011 *)

Crossrefs

Sequence in context: A363760 A048000 A048081 * A114460 A120201 A188056

Adjacent sequences: A109933 A109934 A109935 * A109937 A109938 A109939

Keyword

base,easy,nonn

Author

Amarnath Murthy, Jul 19 2005

Status

approved