A046436 6 steps needed to reach a prime under "Sum of digits raised to its digits' powers" procedure.

178, 179, 187, 197, 199, 267, 276, 278, 287, 335, 353, 367, 376, 388, 467, 476, 533, 557, 575, 627, 637, 647, 672, 673, 674, 708, 709, 718, 719, 726, 728, 736, 746, 755, 762, 763, 764, 779, 780, 781, 782, 790, 791, 797, 807, 817, 827, 838, 870, 871, 872

Offset

1,1

Links

Table of n, a(n) for n=1..51.

Crossrefs

Cf. A046431.

Sequence in context: A189904 A189160 A053018 * A114081 A217037 A224600

Adjacent sequences: A046433 A046434 A046435 * A046437 A046438 A046439

Keyword

nonn,base

Author

Patrick De Geest, Jul 15 1998

Status

approved