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A031081
Position of n-th 4 in
A031076
.
+0
1
4, 18, 36, 54, 63, 65, 67, 69, 71, 72, 73, 75, 77, 79, 90, 108, 126, 144, 167, 194, 221, 248, 262, 265, 268, 271, 274, 275, 277, 280, 283, 286, 302, 329, 356, 383, 410, 437, 464, 491, 505, 508, 511, 514, 517, 518, 520, 523, 526
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.
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