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A031491
n-th number k which in base 8 has 2 fewer 0's than 7's.
+0
1
63, 127, 191, 255, 319, 383, 447, 463, 471, 479, 487, 495, 503, 505, 506, 507, 508, 509, 510, 639, 703, 767, 831, 895, 959, 975, 983, 991, 999, 1007, 1015, 1017, 1018, 1019, 1020, 1021, 1022
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Maintained by
N. J. A. Sloane
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
AT&T Labs Research
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