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A127138 Q(1,n), where Q(m,k) is defined in A127080 and A127137, 1
1, 1, -1, -4, 3, 28, -15, -288, 105, 3984, -945, -70080, 10395, 1506240, -135135, -38384640, 2027025, 1133072640, -34459425, -38038533120, 654729075, 1431213235200, -13749310575, -59645279232000, 316234143225, 2726781752217600, -7905853580625, -135661078090137600, 213458046676875 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

REFERENCES

V. van der Noort and N. J. A. Sloane, Paper in preparation, 2007.

LINKS

Table of n, a(n) for n=0..28.

FORMULA

See A127080 for e.g.f.

CROSSREFS

A001147 interleaved with A076729.

A column of A127080.

Sequence in context: A243237 A072044 A286795 * A064081 A211364 A099438

Adjacent sequences:  A127135 A127136 A127137 * A127139 A127140 A127141

KEYWORD

sign

AUTHOR

N. J. A. Sloane, Mar 24 2007

STATUS

approved

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Last modified January 17 23:37 EST 2020. Contains 330995 sequences. (Running on oeis4.)