login
A135478
Given n, find the smallest prime p such that n(n+1)+p = q is a prime; then a(n) = q.
1
2, 5, 11, 17, 23, 37, 47, 59, 79, 97, 113, 137, 163, 193, 223, 251, 277, 311, 347, 383, 431, 467, 509, 557, 607, 653, 709, 761, 823, 877, 937, 997, 1061, 1129, 1193, 1277, 1361, 1409, 1487, 1567, 1657, 1733, 1811, 1933, 1987, 2081, 2179, 2267, 2357, 2467
OFFSET
0,1
EXAMPLE
0*1+2=2
1*2+3=5
2*3+5=11
3*4+5=17
CROSSREFS
Sequence in context: A105875 A031368 A020613 * A019381 A113426 A078894
KEYWORD
nonn
AUTHOR
Pierre CAMI, Feb 06 2008
EXTENSIONS
Corrected by N. J. A. Sloane, Feb 10 2008
More terms from Klaus Brockhaus, Feb 10 2008
STATUS
approved