A092926 Value of k pertaining to A092925. a(n) = k if n*(n-1)*(n-2)...*(n-k)-1 is the least prime of this form.

0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 3, 0, 2, 1, 1, 0, 2, 0, 1, 1, 5, 0, 1, 9, 1, 4, 1, 0, 1, 0, 16, 5, 21, 1, 2, 0, 1, 1, 6, 0, 3, 0, 1, 1, 1, 0, 1, 5, 1, 3, 4, 0, 1, 1, 1, 6, 2, 0, 1, 0, 3, 5, 1, 1, 1, 0, 1, 2, 1, 0, 6, 0, 5, 3, 1, 16, 3, 0, 6, 2, 4, 0, 8, 1, 1, 8, 15, 0, 30, 7, 6, 1, 1, 8, 1, 0, 2, 5, 1, 0, 70, 0

Offset

3,11

Comments

Subsidiary Sequence: First occurrence of n in this sequence. 3,5,15,13,?,23,...

Links

Table of n, a(n) for n=3..104.

Example

a(13) = 3 as 13*12*11*10-1 = 17159 = A092925(13) is the least prime of this form.

Crossrefs

Cf. A092925, A092927, A092928.

Sequence in context: A004603 A174951 A275326 * A052311 A181786 A164629

Adjacent sequences: A092923 A092924 A092925 * A092927 A092928 A092929

Keyword

easy,nonn

Author

Amarnath Murthy, Mar 18 2004

Extensions

Corrected and extended by Ray Chandler, Mar 23 2004

Status

approved