A235229 Numbers whose sum of digits is 20.

299, 389, 398, 479, 488, 497, 569, 578, 587, 596, 659, 668, 677, 686, 695, 749, 758, 767, 776, 785, 794, 839, 848, 857, 866, 875, 884, 893, 929, 938, 947, 956, 965, 974, 983, 992, 1199, 1289, 1298, 1379, 1388, 1397, 1469, 1478, 1487, 1496, 1559, 1568, 1577, 1586

Offset

1,1

Comments

A007953(a(n)) = 20; number of repdigits = #{5555,44444,2222222222,1^20} = A242627(20) = 4. - Reinhard Zumkeller, Jul 17 2014

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[Range[2000], Total[IntegerDigits[#]]==20&]

Prog

(Magma) [n: n in [1..2000] | &+Intseq(n) eq 20];
(Haskell)
a235229 n = a235229_list !! (n-1)
a235229_list = filter ((== 20) . a007953) [0..]
-- Reinhard Zumkeller, Jul 17 2014

Crossrefs

Cf. A052217 - A052224, A143164, A166311, A166370, A166459.

Cf. 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).

Cf. A242614, A242627.

Sequence in context: A129037 A249296 A245956 * A064908 A341189 A105990

Adjacent sequences: A235226 A235227 A235228 * A235230 A235231 A235232

Keyword

base,nonn

Author

Vincenzo Librandi, Jan 05 2014

Status

approved