A006831 From fundamental unit of Z[ (-n)^{1/4} ]. (Formerly M0204)

1, -1, 0, 0, 2, 2, 1, -66, -3, 6, 1, -10, -2, 4, 51, -1, 11512, 4956000, 0, 8, 81146, 1629810, -3, -281, -13, -126466, 7, -39122, 2218, 217672, 663, -6, -4, -6768, 65, -6356, -54441051012990, -68, -29

Offset

1,5

References

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

Table of n, a(n) for n=1..39.

J. Buchmann, The computation of the fundamental unit of totally complex quartic orders, Math. Comp. 48 (1987), 39-54.

Crossrefs

Cf. A006828, A006829, A006830.

Sequence in context: A006828 A091752 A078078 * A356816 A016414 A049337

Adjacent sequences: A006828 A006829 A006830 * A006832 A006833 A006834

Keyword

sign,more

Author

N. J. A. Sloane.

Status

approved