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A073217 The terms of A055237 (sums of two powers of 5) divided by 2. 0

%I #3 Mar 30 2012 17:24:45

%S 1,3,5,13,15,25,63,65,75,125,313,315,325,375,625,1563,1565,1575,1625,

%T 1875,3125,7813,7815,7825,7875,8125,9375,15625,39063,39065,39075,

%U 39125,39375,40625,46875,78125

%N The terms of A055237 (sums of two powers of 5) divided by 2.

%F (5^n + 5^m) / 2, n = 0, 1, 2, 3 ..., m = 0, 1, 2, 3, ... n.

%e a(4) = 13 = (5^2+5^0) / 2

%Y Cf. A055237.

%K easy,nonn

%O 1,2

%A _Jeremy Gardiner_, Jul 21 2002

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Last modified March 28 04:55 EDT 2024. Contains 371235 sequences. (Running on oeis4.)