# A138128 (b-file synthesized from sequence entry) 0 1 1 127 2 16129 3 2048383 4 260144641 5 33038369407 6 4195872914689 7 532875860165503 8 67675234241018881 9 8594754748609397887 10 1091533853073393531649 11 138624799340320978519423