A046437 7 steps needed to reach a prime under "Sum of digits raised to its digits' powers" procedure.

29, 92, 156, 165, 234, 243, 268, 286, 288, 324, 342, 423, 432, 506, 516, 560, 561, 605, 615, 628, 650, 651, 682, 688, 826, 828, 862, 868, 882, 886, 1035, 1049, 1053, 1094, 1135, 1149, 1153, 1194, 1256, 1265, 1305, 1315, 1350, 1351, 1409, 1419, 1447, 1455

Offset

1,1

Links

Table of n, a(n) for n=1..48.

Crossrefs

Cf. A046431.

Sequence in context: A039416 A043239 A044019 * A044216 A044597 A138625

Adjacent sequences: A046434 A046435 A046436 * A046438 A046439 A046440

Keyword

nonn,base

Author

Patrick De Geest, Jul 15 1998

Status

approved