A185373 The numerator of the fraction |n^2/A049417(n)-A064380(n)|.

1, 1, 1, 1, 0, 1, 4, 1, 5, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 7, 5, 1, 2, 1, 2, 9, 3, 1, 1, 1, 4, 11, 11, 25, 2, 1, 1, 9, 2, 1, 11, 1, 4, 3, 7, 1, 2, 1, 2, 1, 13, 1, 3, 1, 13, 49, 17, 1, 0, 1, 1, 49, 16, 25, 1, 1, 17, 19, 35, 1, 14, 1, 2

Offset

2,7

Comments

n^2/A049417(n) is a multiplicative function, whereas A064380 is not. This sequence here measures the (small) differences n^2/A049417(n)-A064380(n) = 1/3, 1/4, 1/5, 1/6, 0, 1/8, 4/15, 1/10, 5/9, 1/12, 1/5 ...

Links

Table of n, a(n) for n=2..74.

Crossrefs

Cf. A064380, A049417, A185383 (denominators)

Sequence in context: A303144 A370451 A265602 * A244759 A194127 A061642

Adjacent sequences: A185370 A185371 A185372 * A185374 A185375 A185376

Keyword

nonn,frac,less

Author

Vladimir Shevelev, Feb 17 2011

Status

approved