Values of A167053(k)-A167053(k-1)-1 not equal to 1.

Terms

a(0) =15a(1) =19a(2) =41a(3) =83a(4) =167a(5) =337a(6) =673a(7) =1361a(8) =2729a(9) =5471a(10) =10949a(11) =21911a(12) =43853a(13) =87719a(14) =175447a(15) =350899a(16) =701819a(17) =1403641a(18) =2807303a(19) =5614657a(20) =11229331a(21) =22458671a(22) =44917381a(23) =89834777a(24) =179669557a(25) =359339171a(26) =718678369