A058980 Numbers of form 4k such that nops(invphi(4*k)=0 (the non-totients congruent to 0 modulo 4).

68, 76, 124, 152, 188, 236, 244, 248, 284, 304, 308, 340, 364, 376, 404, 412, 428, 436, 472, 484, 488, 496, 516, 532, 548, 572, 596, 604, 608, 628, 644, 668, 680, 724, 728, 740, 748, 752, 788, 804, 824, 844, 868, 872, 892, 908, 916, 944, 948, 964, 968, 988