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1,2
Table of n, a(n) for n=1..52.
Cf. A096004.
Sequence in context: A133690 A097057 A333168 * A160746 A160740 A270345
Adjacent sequences: A306216 A306217 A306218 * A306220 A306221 A306222
nonn
Peter Kagey, Jan 30 2019
approved