OFFSET
1,1
LINKS
R. Zumkeller, Table of n, a(n) for n = 1..869 (full sequence)
EXAMPLE
a(1) = 176 = 1 - 2 + 34 + 56 + 78 + 9;
a(2) = 191 = 123 + 4 + 56 + 7 - 8 + 9;
a(3) = 194 = 1 - 2 + 34 + 5 + 67 + 89;
a(4) = 196 = -1 + 2 + 34 + 5 + 67 + 89;
a(5) = 209 = 1 + 234 + 56 + 7 - 89;
a(6) = 213 = 123 + 4 + 5 - 6 + 78 + 9;
a(7) = 215 = 123 + 4 - 5 + 6 + 78 + 9;
a(8) = 217 = 123 - 4 + 5 + 6 + 78 + 9;
a(9) = 223 = -1 + 23 + 45 + 67 + 89;
a(10) = 237 = -123 + 456 - 7 - 89;
a(11) = 253 = -1 + 2 + 345 - 6 - 78 - 9;
a(12) = 259 = -1 + 234 - 56 - 7 + 89;
a(869) = 123456789 = A136602(1715).
CROSSREFS
KEYWORD
nonn,fini,full,base
AUTHOR
Reinhard Zumkeller, Jan 12 2008
STATUS
approved