factordb · sequences

Sequence

Start with

Show

whole sequence last 20 terms last term range to

Terminates

Mid-divisor concatenation · Base 3 of 178 length 12 The sequence reaches a prime. ↓ .elf file

Show sequence-development graph

Term size (digits) across the sequence — How the sequence develops - decimal digits of each term vs iteration.

n	Status	Digits	Term	Factorization
0	Fully factored	3	178	2×89
1	Fully factored	3	575	5²×23
2	Fully factored	3	646	2×17×19
3	Fully factored	4	1573	11²×13
4	Fully factored	4	3280	2⁴×5×41
5	Fully factored	4	3401	19×179
6	Fully factored	4	4796	2²×11×109
7	Fully factored	5	10801	7×1543
8	Fully factored	5	16852	2²×11×383
9	Fully factored	5	32459	7×4637
10	Fully factored	5	50564	2²×12641
11	Fully factored	5	91373	91373
↳	Terminates The sequence reaches a prime and terminates.

From the command linefdb · curl

fdb

fdb seq view '178' --type 141 --part last20

curl

curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"sequence_view","params":{"start":{"expr":"178"},"type":141,"part":"last20","fr":0}}'