A013568 Almost certainly an erroneous version of A317209.

1, 0, 0, 0, 7, -665, 219, -598, 11570, -5357968, 995254, -4960662, 126624718, -783821598, 22344623929, -166137700653, 5222279193717, -16426560893778654, 1561364880901471, -15643758252397591

Offset

0,5

Comments

Joerg Arndt pointed out on Nov 20 2016 that the original definition was wrong.

Links

Table of n, a(n) for n=0..19.

Crossrefs

Cf. A317209.

Sequence in context: A347507 A074282 A171737 * A174853 A228928 A332167

Adjacent sequences: A013565 A013566 A013567 * A013569 A013570 A013571

Keyword

sign

Author

Patrick Demichel (patrick.demichel(AT)hp.com)

Extensions

Name edited by N. J. A. Sloane, Aug 10 2018 based on investigations by Sean A. Irvine, Aug 08 2018

Status

approved