A037135 Number of ways of writing n=a+b where |s(a)-a|=|s(b)-b|, s(x)=sigma(x)-x.

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

Offset

1,6

Links

Table of n, a(n) for n=1..102.

Naohiro Nomoto, Sequence of Yin and Yang

Crossrefs

Sequence in context: A329867 A342652 A083715 * A374521 A202177 A354793

Adjacent sequences: A037132 A037133 A037134 * A037136 A037137 A037138

Keyword

nonn

Author

Naohiro Nomoto

Status

approved