Statements (36)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
integer sequence
|
| gptkbp:author |
gptkb:N._J._A._Sloane
|
| gptkbp:describedBy |
https://oeis.org/A007640
|
| gptkbp:first_terms |
2
101 1297 17 197 257 37 401 5 1601 577 677 3137 2917 8101 4357 7057 5477 |
| gptkbp:hasKeyword |
gptkb:center
easy nice hard nonn |
| https://www.w3.org/2000/01/rdf-schema#label |
A007640
|
| gptkbp:name |
gptkb:Primes_of_the_form_n^2_+_1
|
| gptkbp:OEIS |
gptkb:A007640
|
| gptkbp:sequence |
prime numbers
a(n) = n^2 + 1, where a(n) is prime A002313 A002384 A002496 |
| gptkbp:bfsParent |
gptkb:A000081
|
| gptkbp:bfsLayer |
8
|