A213408 Sequence A002654 with the zero terms omitted.

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

Offset: 1

Author

N. J. A. Sloane, Jun 10 2012

Keywords

• nonn

References

• J. W. L. Glaisher, On the function which denotes the difference between the number of (4m+1)-divisors and the number of (4m+3)-divisors of a number, Proc. London Math. Soc., 15 (1884), 104-122. See Table on page 106.
• N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

Crossrefs

Cf. A002654.