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A262786
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a(n) = 37^(2*n+1).
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3
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37, 50653, 69343957, 94931877133, 129961739795077, 177917621779460413, 243569224216081305397, 333446267951815307088493, 456487940826035155404146917, 624931990990842127748277129373, 855531895666462872887391390111637, 1171223165167387672982838813062831053
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OFFSET
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0,1
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COMMENTS
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37*a(n) is a square.
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LINKS
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FORMULA
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G.f.: 37/(1 - 1369*x).
a(n) = 1369*a(n-1).
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MATHEMATICA
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37^Range[1, 30, 2]
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PROG
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(Magma) [37^(2*n+1): n in [0..15]];
(PARI) vector(20, n, n--; 37^(2*n+1)) \\ Altug Alkan, Oct 08 2015
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CROSSREFS
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Second bisection of A009981 (powers of 37).
Cf. similar sequences listed in A262715.
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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