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Concatenation of next n perfect numbers.
0

%I #8 Apr 04 2022 09:17:17

%S 6,28496,8128335503368589869056,

%T 13743869132823058430081399521282658455991569831744654692615953842176191561942608236107294793378084303638130997321548169216

%N Concatenation of next n perfect numbers.

%C The next term -- a(5) -- has 1592 digits. - _Harvey P. Dale_, Apr 04 2022

%H Omar E. Pol, <a href="http://www.polprimos.com">Determinacion geometrica de los numeros primos y perfectos</a>.

%t Module[{nn=5},FromDigits[Flatten[IntegerDigits/@#]]&/@TakeList[ PerfectNumber[ Range[ (nn(nn+1))/2]],Range[nn]]] (* _Harvey P. Dale_, Apr 04 2022 *)

%Y Cf. A053067, A132928, A133013. Perfect numbers: A000396.

%K base,easy,nonn

%O 1,1

%A _Omar E. Pol_, Nov 12 2007