A048534 Smallest oblong (promic) number containing exactly n 2's.

2, 272, 20022, 210222, 2127222, 112222242, 1329222222, 222721228422, 222222202620, 12225222042222, 222922622262242, 22222622629269222, 222262242222052122, 22222222222226402, 222222624222746822222, 13222522222222257222852, 222222225263222925292272

Offset

1,1

Links

Table of n, a(n) for n=1..17.

Eric Weisstein's World of Mathematics, Pronic Number

Crossrefs

Cf. A048533, A002378.

Cf. A048530, A048532, A048536, A048538, A048540, A048542, A048544, A048546, A048548.

Sequence in context: A318171 A324596 A007512 * A135696 A008775 A237993

Adjacent sequences: A048531 A048532 A048533 * A048535 A048536 A048537

Keyword

nonn,base

Author

Patrick De Geest, May 15 1999

Extensions

a(15)-a(17) from Giovanni Resta, Oct 09 2019

Status

approved