A053062 Concatenate n, 2n, 3n, ... nn.

1, 24, 369, 481216, 510152025, 61218243036, 7142128354249, 816243240485664, 91827364554637281, 102030405060708090100, 112233445566778899110121, 1224364860728496108120132144, 13263952657891104117130143156169, 14284256708498112126140154168182196

Offset

1,2

References

Felice Russo, A set of new Smarandache functions, sequences and conjectures in number theory, American Research Press 2000.

Links

Table of n, a(n) for n=1..14.

Maple

a:= n-> parse(cat(j*n$j=1..n)):
seq(a(n), n=1..14);  # Alois P. Heinz, Jan 24 2021

Prog

(Python)
def a(n): return int("".join(str(n*i) for i in range(1, n+1)))
print([a(n) for n in range(1, 15)]) # Michael S. Branicky, Jan 24 2021

Crossrefs

Cf. A061082.

Sequence in context: A028074 A028111 A168304 * A028060 A026326 A028043

Adjacent sequences: A053059 A053060 A053061 * A053063 A053064 A053065

Keyword

easy,base,nonn,less

Author

Felice Russo, Feb 25 2000

Extensions

More terms from James A. Sellers, Feb 28 2000

Status

approved