A030740 a(n)=least k such that s(k)=n, where s=A030737.

2, 1, 5, 6, 8, 12, 11, 17, 16, 24, 58, 23, 33, 218, 32, 44, 161, 43, 57, 158, 56, 72, 157, 71, 90, 156, 319, 89, 180, 210, 109, 242, 155, 131, 278, 154, 277, 178, 406, 315, 405, 241, 358, 276, 208, 681, 314, 240, 452, 620, 356, 275