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 A216995 Multiples of 11 whose digit sum is a multiple of 11. 10
 209, 308, 407, 506, 605, 704, 803, 902, 2090, 2299, 2398, 2497, 2596, 2695, 2794, 2893, 2992, 3080, 3289, 3388, 3487, 3586, 3685, 3784, 3883, 3982, 4070, 4279, 4378, 4477, 4576, 4675, 4774, 4873, 4972, 5060, 5269, 5368, 5467, 5566, 5665, 5764, 5863, 5962, 6050 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Nothing between 1000 and 2000. Also, there are no a(n) from 10902 to 12198 (this interval contains 117 multiples of 11). [Bruno Berselli, Oct 26 2012] LINKS Bruno Berselli, Table of n, a(n) for n = 1..1000 EXAMPLE 3487 = 11*317 and 3+4+8+7 = 22 = 11*2. MATHEMATICA Select[11*Range[1000], Mod[Total[IntegerDigits[#]], 11] == 0 &] (* T. D. Noe, Sep 24 2012 *) PROG (JavaScript) function sumarray(arr) { t=0; for (i=0; i

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)