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A087934 a(n) is the least k>=0 such that P(x)=(x-1)*(x-2)*..(x-n)-k has only 1 real root if n is odd, only 2 real roots if n is even. 0
0, 0, 1, 1, 4, 6, 96, 130, 4930, 6556, 416615, 547035, 52346851, 68052947, 9150486666, 11800704395, 2122773858331, 2719323939675, 630854176216923, 803548959057850, 233667907156182198, 296168864567954970, 105531126177212999940, 133179680978969198101, 57078667671269237092154 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..25.

CROSSREFS

Sequence in context: A013079 A222495 A307101 * A052684 A213128 A105037

Adjacent sequences:  A087931 A087932 A087933 * A087935 A087936 A087937

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Oct 27 2003

EXTENSIONS

More terms from Jinyuan Wang, Apr 03 2020

STATUS

approved

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Last modified October 15 21:38 EDT 2021. Contains 348034 sequences. (Running on oeis4.)