A236546 Discriminant of A048981(n) (= squarefree integers for which the quadratic field Q[sqrt(D)] is norm-Euclidean).

-11, -7, -3, -8, -4, 8, 12, 5, 24, 28, 44, 13, 17, 76, 21, 29, 33, 37, 41, 57, 73

Offset: 1

Author

M. F. Hasler, Jan 28 2014

Keywords

• sign

Comments

Note that here, values are not sorted by size, but in direct correspondence with terms of A048981. This is in contrast to A003246, where the same positive values are listed by size.

Crossrefs

Cf. A003174, A003246, A037449, A048981, A204993, A187776.

Programs

PARI

for(D=-11,73,is_A048981(D)&&print1(quaddisc(D)","))

PARI

A236546 = n->quaddisc(A048981(n))

Formula

a(n) = A037449(A048981(n)) for n>5, a(n) = -A204993(-A048981(n)) for n <= 5.