A179636 Median of the digits in n (rounding up).

1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0

Offset

1,2

Links

Table of n, a(n) for n=1..105.

Formula

Function selects the middle digit in n or, for even numbers, the digit to the right of the middle.

Example

a(1) = 1.
a(12) = 2.
a(123) = 2.
a(1234) = 3.

Maple

A179636 := proc(n) dgs := convert(n, base, 10) ; l := nops(dgs) ; if type(l, 'odd' ) then dgs[(l+1)/2] ; else dgs[l/2] ; end if; end proc: seq(A179636(n), n=1..120); # R. J. Mathar, Jul 27 2010

Mathematica

f[n_] := IntegerDigits[n][[ Floor[ (Log[10, n] + 1)/2] + 1]]; Array[f, 105] (* Robert G. Wilson v, Jul 25 2010 *)

Crossrefs

Cf. A179635.

Sequence in context: A134778 A118943 A010879 * A217657 A175419 A175422

Adjacent sequences: A179633 A179634 A179635 * A179637 A179638 A179639

Keyword

easy,nonn,base

Author

Dominick Cancilla, Jul 21 2010

Extensions

More terms from R. J. Mathar and Robert G. Wilson v, Jul 27 2010

Status

approved