/usr/include/seqan/index/ is in seqan-dev 1.3.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/seqan/index/find_index.h
/usr/include/seqan/index/find_index_approx.h
/usr/include/seqan/index/find_index_esa.h
/usr/include/seqan/index/find_index_qgram.h
/usr/include/seqan/index/find_quasar.h
/usr/include/seqan/index/find_swift.h
/usr/include/seqan/index/index_base.h
/usr/include/seqan/index/index_bwt.h
/usr/include/seqan/index/index_childtab.h
/usr/include/seqan/index/index_dfi.h
/usr/include/seqan/index/index_esa_algs.h
/usr/include/seqan/index/index_esa_algs_multi.h
/usr/include/seqan/index/index_esa_base.h
/usr/include/seqan/index/index_esa_drawing.h
/usr/include/seqan/index/index_esa_stree.h
/usr/include/seqan/index/index_generated_forwards.h
/usr/include/seqan/index/index_lcp.h
/usr/include/seqan/index/index_lcp_tree.h
/usr/include/seqan/index/index_manual_forwards.h
/usr/include/seqan/index/index_pizzachili.h
/usr/include/seqan/index/index_pizzachili_find.h
/usr/include/seqan/index/index_pizzachili_string.h
/usr/include/seqan/index/index_qgram.h
/usr/include/seqan/index/index_qgram_openaddressing.h
/usr/include/seqan/index/index_sa_btree.h
/usr/include/seqan/index/index_sa_bwtwalk.h
/usr/include/seqan/index/index_sa_lss.h
/usr/include/seqan/index/index_sa_mm.h
/usr/include/seqan/index/index_sa_qsort.h
/usr/include/seqan/index/index_shawarma.h
/usr/include/seqan/index/index_shims.h
/usr/include/seqan/index/index_skew3.h
/usr/include/seqan/index/index_skew7.h
/usr/include/seqan/index/index_skew7_multi.h
/usr/include/seqan/index/index_wotd.h
/usr/include/seqan/index/pipe_merger3.h
/usr/include/seqan/index/pipe_merger7.h
/usr/include/seqan/index/pizzachili_api.h
/usr/include/seqan/index/pump_extender3.h
/usr/include/seqan/index/pump_extender7.h
/usr/include/seqan/index/pump_lcp_core.h
/usr/include/seqan/index/pump_separator7.h
/usr/include/seqan/index/radix.h
/usr/include/seqan/index/repeat_base.h
/usr/include/seqan/index/shape_base.h
/usr/include/seqan/index/shape_gapped.h
/usr/include/seqan/index/shape_onegapped.h
/usr/include/seqan/index/shape_predefined.h
/usr/include/seqan/index/shape_threshold.h