7,2
Seems to be n*A011797.
Sequence in context: A006636 A092365 A014343 this_sequence A008500 A008490 A023033
Adjacent sequences: A051189 A051190 A051191 this_sequence A051193 A051194 A051195
nonn
Clark Kimberling (ck6(AT)evansville.edu)
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