A134113 Powers of 7 written backwards and sorted.

1, 7, 94, 343, 1042, 70861, 345328, 946711, 1084675, 70635304, 942574282, 3476237791, 10278214831, 70401098869, 948270322876, 3499051657474, 10696503923233, 702789315036232, 9440197953148261, 10021679266229797

Offset

1,2

Links

Table of n, a(n) for n=1..20.

Mathematica

Sort[FromDigits[Reverse[IntegerDigits[#]]]&/@(7^Range[0, 20])] (* Harvey P. Dale, Dec 23 2013 *)

Prog

(PARI) A134113_first(n, p=7, L=log(10)/log(p))=vecsort([A004086(p^k)|k<-[0..n\/L*L\1]])[1..n] \\ M. F. Hasler, Mar 27 2026

Crossrefs

Cf. A000420 (powers of 7), A004086 (digit reversal).

Sequence in context: A219417 A220405 A109304 * A071584 A132114 A221384

Adjacent sequences: A134110 A134111 A134112 * A134114 A134115 A134116

Keyword

base,easy,nonn

Author

Jonathan Vos Post, Oct 08 2007

Status

approved