A346783 a(n) = A006577(A346782(n)), records in A070974.
1, 8, 10, 20, 41, 44, 86, 147, 210, 264, 426, 500, 559, 633, 795, 950, 1069, 1171, 1218, 1327, 1330, 1342, 1402, 1551, 1672, 1974, 2274, 2528, 2725, 2730, 2911, 2928, 2994, 3117, 3315, 3443, 3495, 3524, 4061, 4347, 4651, 4703, 4818, 5049, 5322, 5447, 5449, 5756
Offset: 1
Keywords
Programs
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PARI
a6577(n0)={my(n=n0, k=0); while(n>1, k++; n=if(n%2, 3*n+1, n/2)); k}; a346783(limit)={my(msteps=0);for(k=0,limit,my(m=a6577(k!));if(m>msteps,print1(m,", ");msteps=m))}; a346783(150)