A255689 Convert n to base 4, move the most significant digit to the least significant one and convert back to base 10.
0, 1, 2, 3, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15, 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53, 57, 61, 2, 6, 10, 14, 18, 22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 3, 7, 11, 15, 19, 23, 27, 31, 35, 39, 43, 47, 51, 55, 59, 63, 1, 5, 9, 13, 17, 21, 25
Offset: 0
Examples
11 in base 4 is 23: moving the most significant digit as the least significant one we have 32 that is 14 in base 10.
Links
- Indranil Ghosh, Table of n, a(n) for n = 0..65536 (terms 0..1000 from Paolo P. Lava)
Programs
-
Maple
with(numtheory): P:=proc(q,h) local a,b,k,n; print(0); for n from 1 to q do a:=convert(n,base,h); b:=[]; for k from 1 to nops(a)-1 do b:=[op(b),a[k]]; od; a:=[a[nops(a)],op(b)]; a:=convert(a,base,h,10); b:=0; for k from nops(a) by -1 to 1 do b:=10*b+a[k]; od; print(b); od; end: P(10^4,4);
-
Mathematica
roll[n_, b_] := Block[{w = IntegerDigits[n, b]}, Append[Rest@ w, First@ w]]; b = 4; FromDigits[#, b] & /@ (roll[#, b] & /@ Range[0, 70]) (* Michael De Vlieger, Mar 04 2015 *) Table[FromDigits[RotateLeft[IntegerDigits[n,4]],4],{n,0,70}] (* Harvey P. Dale, Aug 07 2015 *)
-
Python
def A255689(n): x=A007090(n) return int (x[1:]+x[0],4) # Indranil Ghosh, Feb 08 2017
Comments