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A073217 The terms of A055237 (sums of two powers of 5) divided by 2. 0
1, 3, 5, 13, 15, 25, 63, 65, 75, 125, 313, 315, 325, 375, 625, 1563, 1565, 1575, 1625, 1875, 3125, 7813, 7815, 7825, 7875, 8125, 9375, 15625, 39063, 39065, 39075, 39125, 39375, 40625, 46875, 78125 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..36.

FORMULA

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

EXAMPLE

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

CROSSREFS

Cf. A055237.

Sequence in context: A293863 A086769 A018753 * A063484 A057920 A018329

Adjacent sequences:  A073214 A073215 A073216 * A073218 A073219 A073220

KEYWORD

easy,nonn

AUTHOR

Jeremy Gardiner, Jul 21 2002

STATUS

approved

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Last modified November 30 03:44 EST 2021. Contains 349416 sequences. (Running on oeis4.)