A044627 Numbers n such that string 7,3 occurs in the base 8 representation of n but not of n+1.

59, 123, 187, 251, 315, 379, 443, 479, 507, 571, 635, 699, 763, 827, 891, 955, 991, 1019, 1083, 1147, 1211, 1275, 1339, 1403, 1467, 1503, 1531, 1595, 1659, 1723, 1787, 1851, 1915, 1979, 2015, 2043, 2107, 2171, 2235, 2299, 2363