A056229 Hankel transform of Euler totient function (A000010).

1, 1, 0, -4, 64, -240, -2656, 15360, -88064, -1714176, -28506112, 59061248, 1975595008, -107448238080, 858018086912, 12209125720064, 61138306793472, -297002777247744, -7586668200067072, 309144292445913088

Offset

1,4

Links

Table of n, a(n) for n=1..20.

Crossrefs

See A001906 for definition of Hankel transform.

Sequence in context: A273375 A016934 A260182 * A062271 A110258 A056982

Adjacent sequences: A056226 A056227 A056228 * A056230 A056231 A056232

Keyword

sign

Author

N. J. A. Sloane, Aug 06 2000

Status

approved