factordb · sequences

Sequence

Start with

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whole sequence last 20 terms last term range to

Terminates

Mid-divisor concatenation · Base 10 of 1962 length 3 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	4	1962	2×3²×109
1	Fully factored	5	18109	7×13×199
2	Fully factored	5	91199	91199
↳	Terminates The sequence reaches a prime and terminates.

From the command linefdb · curl

fdb

fdb seq view '1962' --type 143 --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":"1962"},"type":143,"part":"last20","fr":0}}'