factordbrpc · fdb
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Terminates
Mid-divisor concatenation · Base 2 of 248 length 8 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.
nStatus DigitsTermFactorization
0 Fully factored 3 248 23×31
1 Fully factored 3 287 7×41
2 Fully factored 3 489 3×163
3 Fully factored 3 931 72×19
4 Fully factored 4 1265 5×11×23
5 Fully factored 4 1527 3×509
6 Fully factored 4 2045 5×409
7 Fully factored 4 2969 2969
↳ Terminates The sequence reaches a prime and terminates.
From the command linefdb · curl
fdb
fdb seq view '248' --type 140 --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":"248"},"type":140,"part":"last20","fr":0}}'