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A125003
a(0) = 0, a(1) = 5; for n>1, a(n) is determined by the rule that the concatenation of the leading terms of the difference triangle is the same as the concatenation of the digits of the sequence.
+0
3
0, 5, 11, 19, 31, 59, 137, 337, 795, 1767, 3759, 7813, 16097, 33075, 67793, 138347, 280677, 566041, 1136129, 2274529, 4554047, 9143516, 18450225, 37464726, 76561127, 157278265, 324136399, 668557741, 1376893670, 2826272837
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Maintained by
N. J. A. Sloane
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.
AT&T Labs Research
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