This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A279768 #11 Dec 23 2016 21:36:36 %S A279768 11,47,56,74,83,92,101,110,119,137,146,173,182,191,209,218,227,245, %T A279768 272,281,299,308,317,326,335,344,353,398,407,416,434,443,452,470,479, %U A279768 488,506,524,533,542,551,560,569,578,605,614,632,641,659,668,677,695 %N A279768 Numbers n such that the sum of digits of 8n equals 16. %C A279768 Inspired by A088410 = A069543/8 and A279769 (the analog for 9). %t A279768 Select[Range@ 700, Total@ IntegerDigits[8 #] == 16 &] (* _Michael De Vlieger_, Dec 23 2016 *) %o A279768 (PARI) is(n)=sumdigits(8*n)==16 %Y A279768 Cf. A007953 (digital sum), A279772 (sumdigits(2n) = 4), A279773 (sumdigits(3n) = 6), A279774 (sumdigits(4n) = 8), A279775 (sumdigits(5n) = 10), A279776 (sumdigits(6n) = 12), A279770 (sumdigits(7n) = 14), A279768 (sumdigits(8n) = 16), A279769 (sumdigits(9n) = 18), A279777 (sumdigits(9n) = 27). %Y A279768 Digital sum of m*n equals m: A088404 = A069537/2, A088405 = A052217/3, A088406 = A063997/4, A088407 = A069540/5, A088408 = A062768/6, A088409 = A063416/7, A088410 = A069543/8. %Y A279768 Cf. A005349 (Niven or Harshad numbers), A245062 (arranged in rows by digit sums). %Y A279768 Numbers with given digital sum: A011557 (1), A052216 (2), A052217 (3), A052218 (4), A052219 (5), A052220 (6), A052221 (7), A052222 (8), A052223 (9), A052224 (10), A166311 (11), A235151 (12), A143164 (13), A235225 (14), A235226 (15), A235227 (16), A166370 (17), A235228 (18), A166459 (19), A235229 (20). %K A279768 nonn,easy,base %O A279768 1,1 %A A279768 _M. F. Hasler_, Dec 23 2016