A333834 Multiples of 10 whose sum of digits is 10.
190, 280, 370, 460, 550, 640, 730, 820, 910, 1090, 1180, 1270, 1360, 1450, 1540, 1630, 1720, 1810, 1900, 2080, 2170, 2260, 2350, 2440, 2530, 2620, 2710, 2800, 3070, 3160, 3250, 3340, 3430, 3520, 3610, 3700, 4060, 4150, 4240, 4330, 4420, 4510
Offset: 1
Examples
2440 = 10 * 244 and 2 + 4 + 4 + 0 = 10, hence 2440 is a term.
Crossrefs
Multiples of k whose sum of digits = k: A011557 (k=1), A069537 (k=2), A052217 (k=3), A063997 (k=4), A069540 (k=5), A062768 (k=6), A063416 (k=7), A069543 (k=8), A052223 (k=9), this sequence (k=10), A283742 (k=11), A333814 (k=12), A283737 (k=13).
Subsequence of A218292.
Cf. A057147 (a(n) = n times sum of digits of n)
Programs
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Mathematica
Select[10 * Range[500], Plus @@ IntegerDigits[#] == 10 &] (* Amiram Eldar, Apr 07 2020 *)
Formula
a(n) = 10*A052224(n). - Charles R Greathouse IV, Apr 07 2020
Comments