Index of first occurrence of n in A092931, or 0 if n does not appear.

Terms

a(0) =1a(1) =2a(2) =4a(3) =80a(4) =16a(5) =48a(6) =192a(7) =144a(8) =180a(9) =432a(10) =360a(11) =288a(12) =648a(13) =1152a(14) =1620a(15) =1008a(16) =1512a(17) =2640a(18) =3744a(19) =720a(20) =2240a(21) =1800a(22) =1440a(23) =2400a(24) =6120a(25) =2592a(26) =4680a(27) =2304a(28) =3780a(29) =3024