A037114 Trajectory of 3 under map n->33n+1 if n odd, n->n/2 if n even

3, 100, 50, 25, 826, 413, 13630, 6815, 224896, 112448, 56224, 28112, 14056, 7028, 3514, 1757, 57982, 28991, 956704, 478352, 239176, 119588, 59794, 29897, 986602, 493301, 16278934, 8139467, 268602412