A020947 Least k such that A(k) = n, where A( ) is sequence A020943.

2, 6, 15, 14, 28, 61, 30, 58, 121, 60, 62, 116, 241, 120, 245, 122, 124, 469, 234, 806, 509, 254, 242, 248, 244, 252, 250, 466, 510, 468, 494, 482, 486, 977, 488, 484, 504, 492, 930, 490, 506, 936, 500, 932, 940, 966