[seqfan] Re: Binary Complement Sequences

[Tom Duff]

Oops, copied one down wrong:
819991 87037147315


On Thu, Dec 29, 2022 at 10:22 AM Tom Duff <eigenvectors at gmail.com> wrote:

> I have them all:
> 819991 87037147311
> 820560 25996066240
>
> 829974 4327838170
>
> 836375 4327838183
>
> 836666 1212877574
>
> 875089 1246707601
>
> 876382 1246707550
>
> 879731 1246707639
>
> 973544 1246707556
>
> 977281 1246707553
>
> 980258 1246707530
>
> I haven't actually finished computing 819991, but it is known to be one
> less than 425720. I'm letting it run as a check on 425720.
>
>
> On Thu, Dec 29, 2022 at 10:18 AM Tim Peters <tim.peters at gmail.com> wrote:
>
>> FYI, with 425720 resolved, there are only 11 numbers <= million whose
>> status remains unknown to me:
>>
>> 819991
>> 820560
>> 829974
>> 836375
>> 836666
>> 875089
>> 876382
>> 879731
>> 973544
>> 977281
>> 980258
>>
>> All of those require more than 670 million steps to reach 0 (if ever).
>> 819991 requires more than 25.9 billion steps.
>>
>> --
>> Seqfan Mailing list - http://list.seqfan.eu/
>>
>