Shifts left under lcm-convolution with itself.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =14a(5) =40a(6) =128a(7) =369a(8) =1214a(9) =3516a(10) =12776a(11) =40534a(12) =137404a(13) =463232a(14) =1602348a(15) =5216253a(16) =17753898a(17) =58597316a(18) =212150928a(19) =710453534a(20) =2366853608a(21) =8584498376a(22) =30026959300a(23) =100396304016a(24) =333997297900