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A131766
a(n) = A131668(n) - (2n+1).
1
0, 0, 0, 0, 0, 18, 36, 54, 72, 180, 378, 576, 774, 972, 2970, 4968, 6966, 8964, 19962, 39960, 59958, 79956, 99954, 299952, 499950, 699948, 899946, 1999944, 3999942, 5999940, 7444438, 9999936, 29999934, 49999932, 69999930, 89999928
OFFSET
0,6
COMMENTS
Digital sums: 9*A002266.
CROSSREFS
Sequence in context: A004961 A008600 A373599 * A154575 A344199 A375663
KEYWORD
nonn,base
AUTHOR
Paul Curtz, Oct 04 2007
STATUS
approved