A134802 Concatenation of first n partition numbers of positive integers.

1, 12, 123, 1235, 12357, 1235711, 123571115, 12357111522, 1235711152230, 123571115223042, 12357111522304256, 1235711152230425677, 1235711152230425677101, 1235711152230425677101135

Offset: 1

Author

Omar E. Pol, Nov 12 2007

Keywords

• easy
• nonn
• base

Crossrefs

Cf. A007908, A019518. Partition numbers: A000041. See A132926 for another version of the concatenation of first n partition numbers.

Programs

Mathematica

Module[{nn=20,p},p=PartitionsP[Range[nn]];Table[FromDigits[Flatten[ IntegerDigits/@ Take[p,n]]],{n,nn}]] (* Harvey P. Dale, May 10 2021 *)

Extensions

Edited by Charles R Greathouse IV, Apr 25 2010