A073048 Starting term of the first length-n chain of equidigital numbers (A046758).

5, 10, 1, 191, 13, 1134, 157, 1169312, 100149391, 1016258233, 107375450119, 10271593487494

Offset

1,1

References

Journal of Recreational Mathematics, 29(2) 138 1998, Solution to Problem 2209 "Equidigital Representation"

Links

Table of n, a(n) for n=1..12.

Example

13 is in the sequence because prime decompositions of 13 through 17, i.e. 13, 14=2*7, 15=3*5, 16=2^4, 17, use as many digits as their normal decimal representation.

Crossrefs

Cf. A046758.

Sequence in context: A099731 A307716 A091306 * A102258 A361672 A169841

Adjacent sequences: A073045 A073046 A073047 * A073049 A073050 A073051

Keyword

hard,more,base,nonn

Author

Lekraj Beedassy, Aug 31 2002

Extensions

a(9) corrected and a(11) from Donovan Johnson, Jul 30 2010

a(12) from Giovanni Resta, Aug 14 2013

Status

approved