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A061517
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a(0) = 0; a(n) is obtained by incrementing each digit of a(n-1) by 4.
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1
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0, 4, 8, 12, 56, 910, 1354, 5798, 9111312, 13555756, 5799911910, 911131313551354, 1355575757995798, 579991191191113139111312, 9111313135513551355575713555756, 135557575799579957999119115799911910
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OFFSET
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0,2
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COMMENTS
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In A061511-A061522, A061746-A061750 when the incremented digit exceeds 9 it is written as a 2-digit string. So 9+1 becomes the 2-digit string 10, etc.
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LINKS
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MATHEMATICA
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NestList[FromDigits[Flatten[IntegerDigits/@(IntegerDigits[#]+4)]]&, 0, 20] (* Harvey P. Dale, Nov 20 2020 *)
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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More terms from Larry Reeves (larryr(AT)acm.org), May 11 2001
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STATUS
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approved
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