A239460 Concatenation of n^2 and n^3.

11, 48, 927, 1664, 25125, 36216, 49343, 64512, 81729, 1001000, 1211331, 1441728, 1692197, 1962744, 2253375, 2564096, 2894913, 3245832, 3616859, 4008000, 4419261, 48410648, 52912167, 57613824, 62515625, 67617576, 72919683, 78421952, 84124389, 90027000

Offset

1,1

Comments

a(n) is divisible by n^2.

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Example

a(9) = 81729 because 81 = 9^2 and 729 = 9^3.

Mathematica

Table[ToExpression[ToString[n^2]<>ToString[n^3]], {n, 1, 30}] (* Vaclav Kotesovec, Mar 24 2014 *)
Table[FromDigits[Join[Flatten[IntegerDigits[{n^2, n^3}]]]], {n, 30}] (* Harvey P. Dale, Oct 27 2019 *)

Prog

(PARI) vector(100, n, eval(Str(n^2, n^3)))

Crossrefs

Cf. A053061, A055436, A061086, A061087, A239459, A239461, A239462, A239463, A239464.

Sequence in context: A364579 A008780 A211058 * A226676 A101992 A356792

Adjacent sequences: A239457 A239458 A239459 * A239461 A239462 A239463

Keyword

nonn,base

Author

Colin Barker, Mar 19 2014

Status

approved