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A037564
Base 7 digits are, in order, the first n terms of the periodic sequence with initial period 2,2,1.
0
2, 16, 113, 793, 5553, 38872, 272106, 1904744, 13333209, 93332465, 653327257, 4573290800, 32013035602, 224091249216, 1568638744513, 10980471211593, 76863298481153, 538043089368072, 3766301625576506
OFFSET
1,1
FORMULA
G.f.: x*(2+2*x+x^2) / ( (x-1)*(7*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 30 2015
CROSSREFS
Sequence in context: A117628 A288971 A288970 * A361743 A125725 A288965
KEYWORD
nonn,base,easy
STATUS
approved