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A178676
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a(n) = 5^n + 5.
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5
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6, 10, 30, 130, 630, 3130, 15630, 78130, 390630, 1953130, 9765630, 48828130, 244140630, 1220703130, 6103515630, 30517578130, 152587890630, 762939453130, 3814697265630, 19073486328130, 95367431640630, 476837158203130, 2384185791015630, 11920928955078130
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OFFSET
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0,1
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LINKS
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FORMULA
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a(n) = 5*(a(n-1) - 4) with a(0) = 6.
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EXAMPLE
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G.f. = 6 + 10*x + 30*x^2 + 130*x^3 + 630*x^4 + 3130*x^5 + 15630*x^6 + ... - Michael Somos, Jan 28 2019
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MATHEMATICA
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PROG
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(Magma) [5^n+5: n in [0..35]];
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CROSSREFS
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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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