A095359 Ratio A095109(n)/A095091(n) rounded down.

0, 0, 0, 3, 6, 5, 12, 12, 20, 24, 42, 58, 97, 140, 286, 478, 841, 1504, 2788, 5048

Offset

1,4

Comments

This is the average diving index for those 4k+3 integers in range ]2^n,2^(n+1)] that "dive". See A095101.

The ratios before rounding are: 0, 0, 0, 3, 6.5, 5.714286, 12.933333, 12.548387, 20.691176, 24.635135, 42.903226, 58.98494, 97.742751, 140.742413, 286.896704, 478.786471, 841.487894, 1504.108692, 2788.84881, 5048.608416.

Links

Table of n, a(n) for n=1..20.

Formula

a(n) = 0 if A095091(n) is 0, otherwise a(n) = floor(A095109(n)/A095091(n).

Crossrefs

A095360 gives the same ratios rounded to nearest integer. A095355 gives similar ratios computed only for 4k+3 primes.

Sequence in context: A239487 A246979 A246980 * A048724 A292682 A334748

Adjacent sequences: A095356 A095357 A095358 * A095360 A095361 A095362

Keyword

nonn

Author

Antti Karttunen, Jun 12 2004

Status

approved