A115861 Number of distinct m's < n, such that there exists nonzero solutions to a cross-domain congruence m*i = n X i.

0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 2, 0, 1, 1, 1, 1, 2, 0, 2, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 2, 2, 0, 1, 1, 0, 1, 1, 1, 4, 1, 1, 2, 3, 0, 3, 2, 3, 0, 0, 0, 1, 0, 1, 1, 2, 0, 1, 1, 2, 1, 2, 1, 3, 0, 1, 1, 2, 1, 1, 1, 2, 1, 2, 0, 4, 2, 2, 2, 2, 0, 1, 1, 4, 1, 2, 0

Offset: 1

Author

Antti Karttunen, Feb 07 2006

Keywords

• nonn

Links

• Index entries for sequences defined by congruent products between domains N and GF(2)[X]

Crossrefs

a(2n) = a(n). Cf. A115859, A115869, A115871.