A134110 Powers of 4 written backwards and sorted.

1, 4, 46, 61, 652, 4201, 6904, 48361, 63556, 441262, 4034914, 6758401, 46880176, 61277761, 654534862, 4281473701, 6927694924, 48196897171, 63767491786, 449609778472, 4011156408934, 6777261159901, 46677144786307, 61444068129571

Offset

1,2

Comments

Could be seen as irregular table where row n lists the n-digit terms { 4^k : (n-1) log 10 < k log 4 < n log 10 }. - M. F. Hasler, Mar 27 2026

Links

Table of n, a(n) for n=1..24.

Mathematica

Sort[FromDigits[Reverse[IntegerDigits[#]]]&/@(4^Range[0, 25])]  (* Harvey P. Dale, Feb 22 2011 *)

Prog

(PARI) A134110_first(n)=my(L=log(10)/log(4)); vecsort([A004086(4^k) | k<-[0..n\/L*L\1]])[1..n] \\ M. F. Hasler, Mar 27 2026

Crossrefs

Cf. A000302 (powers of 4), A004086 (digit reversal).

Sequence in context: A119729 A389138 A374591 * A384584 A176312 A309450

Adjacent sequences: A134107 A134108 A134109 * A134111 A134112 A134113

Keyword

base,easy,nonn

Author

Jonathan Vos Post, Oct 08 2007

Status

approved