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 A279768 Numbers n such that the sum of digits of 8n equals 16. 9
 11, 47, 56, 74, 83, 92, 101, 110, 119, 137, 146, 173, 182, 191, 209, 218, 227, 245, 272, 281, 299, 308, 317, 326, 335, 344, 353, 398, 407, 416, 434, 443, 452, 470, 479, 488, 506, 524, 533, 542, 551, 560, 569, 578, 605, 614, 632, 641, 659, 668, 677, 695 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Inspired by A088410 = A069543/8 and A279769 (the analog for 9). LINKS MATHEMATICA Select[Range@ 700, Total@ IntegerDigits[8 #] == 16 &] (* Michael De Vlieger, Dec 23 2016 *) PROG (PARI) is(n)=sumdigits(8*n)==16 CROSSREFS 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). 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. Cf. A005349 (Niven or Harshad numbers), A245062 (arranged in rows by digit sums). 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). Sequence in context: A033209 A107216 A158809 * A238665 A044113 A044494 Adjacent sequences: A279765 A279766 A279767 * A279769 A279770 A279771 KEYWORD nonn,easy,base AUTHOR M. F. Hasler, Dec 23 2016 STATUS approved

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Last modified February 1 19:49 EST 2023. Contains 359995 sequences. (Running on oeis4.)