A140671 Numbers useful in computing A(k), the largest possible magnitude of the x^k coefficient in a cyclotomic polynomial.

150, 820, 2751, 9298, 18016, 38907, 62286, 110681

Offset

3,1

Comments

The values of A(k) are in sequence A138474. The least order N(k) of the cyclotomic polynomial producing A(k) is A138475(k). For k >= a(n), computational experiments have shown that only primes >= prime(n) divide N(k). These terms were determined empirically; is there another way of characterizing these numbers?

Links

Table of n, a(n) for n=3..10.

Crossrefs

Sequence in context: A212465 A273322 A206066 * A054558 A250544 A251801

Adjacent sequences: A140668 A140669 A140670 * A140672 A140673 A140674

Keyword

nonn

Author

T. D. Noe, May 21 2008

Status

approved