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A235168 Triangle read by rows: row n gives digits of n in primorial base. 6
0, 1, 1, 0, 1, 1, 2, 0, 2, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 2, 0, 1, 2, 1, 2, 0, 0, 2, 0, 1, 2, 1, 0, 2, 1, 1, 2, 2, 0, 2, 2, 1, 3, 0, 0, 3, 0, 1, 3, 1, 0, 3, 1, 1, 3, 2, 0, 3, 2, 1, 4, 0, 0, 4, 0, 1, 4, 1, 0, 4, 1, 1, 4, 2, 0, 4, 2, 1, 1, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,7

COMMENTS

T(n,k) = A108731(n,k) for k=0..23; a(n) = A108731(n) for n=0..63), when both tables are seen as flattened lists;

T T(n,k) < 10 for k = 1..A235224(n) and n < 2100 = 10 * 7#.

LINKS

Reinhard Zumkeller, Rows n = 0..2500 of triangle, flattened

Index entries for sequences related to primorial base

EXAMPLE

.        n | .. + _*7# + _*5# + _*3# + _*2# + _*1# | row(n)

. ---------+---------------------------------------+---------------------

.       10 | 1*6 + 2*2 + 0*1                       | [1,2,0]

.      100 | 3*30 + 1*6 + 2*2 + 0*1                | [3,1,2,0]

.     1000 | 4*210 + 5*30 + 1*6 + 2*2n + 0*1       | [4,5,1,2,0]

.     2099 | 9*210 + 6*30 + 4*6 + 2*2 + 1*1        | [9,6,4,2,1]

.     2100 | 10*210 + 0*30 + 0*6 + 0*2 + 0*1       | [10,0,0,0,0]

.    10000 | 4*2310 + 3*210 + 4*30 + 1*6 + 2*2     | [4,3,4,1,2,0]

.   100000 | 3*30030+4*2310+3*210+1*30+1*6+2*2+0*1 | [3,4,3,1,1,2,0]

.  1000000 |                                       | [1,16,3,9,6,1,2,0]

. 10000000 |                                       | [1,0,10,0,0,0,1,2,0]

.  1000000 = 1*510510+16*30030+3*2310+9*210+6*30+1*6+2*2+0*1

. 10000000 = 1*9699690+0*510510+10*30030+0*2310+0*210+0*30+1*6+2*2+0*1 .

PROG

(Haskell)

a235168 n k = a235168_row n !! k

a235168_row 0 = [0]

a235168_row n = t n $ reverse $ takeWhile (<= n) a002110_list

   where t 0 []     = []

         t x (b:bs) = x' : t m bs where (x', m) = divMod x b

a235168_tabf = map a235168_row [0..]

CROSSREFS

Cf. A235224 (row lengths), A049345, A002110, A108731.

Sequence in context: A076626 A182886 A108731 * A060950 A039976 A287267

Adjacent sequences:  A235165 A235166 A235167 * A235169 A235170 A235171

KEYWORD

nonn,tabf,base,look

AUTHOR

Reinhard Zumkeller, Jan 05 2014

STATUS

approved

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Last modified October 20 02:10 EDT 2019. Contains 328244 sequences. (Running on oeis4.)