A091758 Alternating row sums of array A092077 ((8,2)-Stirling2).

1, 41, 5993, 1911281, 1070544561, 931648129241, 1164230224629081, 1977455909783346273, 4384042247054153832161, 12298460017360155919009801, 42594621493418383255115778761, 178534870708446720311905067877201, 890813416549297707507952795640859793

Offset: 1

Author

Wolfdieter Lang, Feb 27 2004

Keywords

• sign
• easy

Comments

The first negative member is the 680 digit number a(138)=-2266379480...2912329207.

Crossrefs

Cf. A091757 (row sums of A092077).

Formula

a(n)= sum( A092077(n, k)*(-1)^k, k=2..2*n), n>=1.