A089086Greatest common divisor of n^2-5 and n^2+5.
5, 2, 1, 2, 1, 10, 1, 2, 1, 2, 5, 2, 1, 2, 1, 10, …
The first 3 terms appear at position 172.
1415926535897932384626433832…
…12848111745028410270193852110555964462294895493038…
…128481117450284102701938521105559644622948954930381…
…4366795706110861533150445212747392454494542368288606…
…30596447695870540721419852121067343324107567675758184…
…3291377373162879602589965212110469960487170199940870147…
…60628698525805996355109152121101391123084568760207649367…
| terms | string | first position | occurrences |
|---|---|---|---|
| 1 | 5 | 4 | 99,998,885 |
| 2 | 52 | 172 | 9,995,964 |
| 3 | 521 | 172 | 999,795 |
| 4 | 5212 | 7,463 | 99,893 |
| 5 | 52121 | 35,563 | 10,011 |
| 6 | 5212110 | 3,995,821 | 88 |
| 7 | 52121101 | 25,179,379 | 5 |
| 8 | 521211012 | not within 1,000,000,000 | 0 |
| 9 | 5212110121 | not within 1,000,000,000 | 0 |
| 10 | 52121101212 | not within 1,000,000,000 | 0 |
| 11 | 521211012125 | not within 1,000,000,000 | 0 |
Searched the first 1,000,000,000 digits. Strings longer than 12 digits are not indexed.