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 A181178 n-th zerofree positive number with digital sum n. 5
 1, 11, 21, 31, 41, 51, 61, 71, 81, 118, 137, 165, 193, 257, 294, 376, 467, 567, 676, 785, 894, 1399, 1778, 1986, 2887, 3869, 4869, 5878, 6887, 7896, 8959, 9968, 18798, 26998, 35999, 45999, 56899, 66989, 76998, 87799 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS n-th value in n-th row of triangular array A069800 in which n-th row consists of numbers (excluding the digit 0) with digit sum n arranged in increasing numerical order. For n > 376, a(n) has decimal representation xyy...y, where x = (n+1) mod 9 + 1, and among y's exactly two equal 8 and the rest equal 9. For example, a(377) = 1999999998999999999999999999999999989999999. - Max Alekseyev, Aug 20 2013 LINKS Zak Seidov, Table of n, a(n) for n = 1..70 EXAMPLE a(1) = 1 because 1 is the 1st number with digital sum 1; a(2) = 11 because 11 is the 2nd number with digital sum 2 {2,11}; a(3) = 21 because 21 is the 3rd (zerofree positive) number with digital sum 3 {3,12,21,111}; a(4) = 31 because 31 is the 4th (zerofree positive) number with digital sum 4 {4,13,22,31,112,121,211,1111}. MATHEMATICA nn=50; c=Table[0, {nn}]; t=c; cnt=0; n=0; While[cnt

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Last modified October 16 09:02 EDT 2021. Contains 348041 sequences. (Running on oeis4.)