A245474a(n) = smallest positive integer s such that s*n - floor(sqrt(s*n))^2 is a square.
1, 1, 1, 3, 1, 1, 6, 7, 1, 1, 1, 11, 3, 1, 14, 3, …
The first term appear at position 1.
1415926535897932384626433…
…40628620899862803482534211706798214808651328230664…
…955058223172535940812848111745028410270193852110555…
…2100675103346711031412671113699086585163983150197016…
…54521459128183179821604411131167140691482717098101545…
…545214591281831798216044111311671406914827170981015457…
…5452145912818317982160441113116714069148271709810154577…
…54521459128183179821604411131167140691482717098101545778…
…545214591281831798216044111311671406914827170981015457781…
| terms | string | first position | occurrences |
|---|---|---|---|
| 1 | 1 | 1 | 99,997,334 |
| 2 | 11 | 94 | 9,997,964 |
| 3 | 111 | 153 | 1,000,046 |
| 4 | 1113 | 3,503 | 99,690 |
| 5 | 11131 | 53,099 | 9,911 |
| 6 | 111311 | 53,099 | 1,000 |
| 7 | 1113116 | 53,099 | 112 |
| 8 | 11131167 | 53,099 | 12 |
| 9 | 111311671 | 53,099 | 3 |
| 10 | 1113116711 | not within 1,000,000,000 | 0 |
| 11 | 11131167111 | not within 1,000,000,000 | 0 |
Searched the first 1,000,000,000 digits. Strings longer than 12 digits are not indexed.