[seqfan] The sum of the digits of a(n) is not in V
Eric Angelini
Eric.Angelini at kntv.be
Thu Oct 23 12:43:26 CEST 2014
Hello Seqfans,
The sum of the digits of a(n) is not in V.
V =
10,11,12,13,14,15,16,17,18,20,21,22,23,24,25,26,27,30,31,32,33,34,35,36,40,41,42,43,44,45,50,51,52,53,54,60,61,62,63,70,71,72,80,81,90,100,101,102,103,104,105,106,107,108,110,111,112,113,114,115,116,117,120,121,122,123,124,125,126,130,131,132,133,134,135,136,140,141,142,143,144,150,151,152,153,160,161,162,170,171,180,199,200,201,...
Example:
1 is not in V because 1 has sum of its own digit(s) = 1
2 is not in V because 1 has sum of its own digit(s) = 2
3 is not in V because 1 has sum of its own digit(s) = 3
...
10 is in V as 1+0 = 1 and 1 is not in V
11 is in V as 1+1 = 2 and 2 is not in V
12 is in V as 1+2 = 3 and 3 is not in V
13 is in V as 1+3 = 4 and 4 is not in V
...
199 is in V as 1+9+9 = 19 and 19 is not in V.
V is not in the OEIS.
Best,
É.
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