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A005348
Number of ways to add n ordinals.
(Formerly M1435)
+0
1
1, 2, 5, 13, 33, 81, 193, 449, 1089, 2673, 6561, 15633, 37249, 88209, 216513, 531441, 1266273, 3017169, 7189057, 17537553, 43046721, 102568113, 244390689, 582313617
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 6 13:15 EST 2009. Contains 170429 sequences.
AT&T Labs Research
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