 
      DOUBLE PRECISION FUNCTION DPSIXN(N)
C***BEGIN PROLOGUE  DPSIXN
C***REFER TO  DEXINT
C
C     This subroutine returns values of PSI(X)=derivative of log
C     GAMMA(X), X.GT.0.0 at integer arguments. A table look-up is
C     performed for N .LE. 100, and the asymptotic expansion is
C     evaluated for N.GT.100.
C***ROUTINES CALLED  D1MACH
C***END PROLOGUE  DPSIXN
 
 
