1,5

Table of n, a(n) for n=1..90.

0

0 0

0 3 0

0 0 4 0

0 5 5 5 0

0 0 0 0 6 0

0 7 7 21 7 7 0

(PARI) for(j=1, 13, for(k=1, j, print1((j^k)%(j*k), ", ")))

Row sums are in A157351. [From Klaus Brockhaus, May 30 2009]

Sequence in context: A296605 A278478 A122480 * A293381 A118112 A245552

Adjacent sequences: A096130 A096131 A096132 * A096134 A096135 A096136

nonn,easy,tabl

Amarnath Murthy, Jul 04 2004

Edited and extended by Klaus Brockhaus, Jul 16 2004

approved