A037110 Trajectory of 3 under map n->25n+1 if n odd, n->n/2 if n even

3, 76, 38, 19, 476, 238, 119, 2976, 1488, 744, 372, 186, 93, 2326, 1163, 29076, 14538, 7269, 181726, 90863, 2271576, 1135788, 567894, 283947, 7098676, 3549338, 1774669, 44366726, 22183363, 554584076, 277292038