A009456 - OEIS

%I #11 Jun 23 2015 22:01:34

%S 0,1,-1,4,-6,5,75,-898,8652,-83347,845955,-9184144,107036094,

%T -1338243751,17908121959,-255747266110,3885901191000,-62631253326023,

%U 1067753665779687,-19203106476922532,363423688810695810

%N Expansion of sin(log(1+x))*cosh(x).

%t Sin[ Log[ 1+x ] ]*Cosh[ x ]

%K sign,easy

%O 0,4

%A _R. H. Hardin_

%E Extended with signs by _Olivier Gérard_, Mar 15 1997