  The goal of the Open Cluster Chemical Abundances and Mapping (OCCAM) survey
is to constrain key Galactic dynamic and chemical evolution parameters by the
construction and analysis of a large, comprehensive, uniform data set of
infrared spectra for stars in hundreds of open clusters. This sixth
contribution from the OCCAM survey presents analysis of SDSS/APOGEE Data
Release 17 (DR17) results for a sample of stars in 150 open clusters, 94 of
which we designate to be "high quality'' based on the appearance of their
color-magnitude diagram. We find the APOGEE DR17-derived [Fe/H] values to be in
good agreement with those from previous high resolution spectroscopic open
cluster abundance studies. Using a subset of the high quality sample, the
Galactic abundance gradients were measured for 16 chemical elements, including
[Fe/H], for both Galactocentric radius ($R_{GC}$) and guiding center radius
($R_{Guide}$). We find an overall Galactic [Fe/H] vs $R_{GC}$ gradient of
$-0.073 \pm 0.002$ dex/kpc over the range of $6 < R_{GC} < 11.5$ kpc, and a
similar gradient is found for [Fe/H] versus $R_{Guide}$. Significant Galactic
abundance gradients are also noted for O, Mg, S, Ca, Mn, Na, Al, K and Ce. Our
large sample additionally allows us to explore the evolution of the gradients
in four age bins for the remaining 15 elements.
