A141701 Triangle read by rows: A001414 interleaved with (k-1) zeros.

0, 2, 0, 3, 0, 0, 4, 2, 0, 0, 5, 0, 0, 0, 0, 5, 3, 2, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 6, 4, 0, 2, 0, 0, 0, 0, 6, 0, 3, 0, 0, 0, 0, 0, 0, 7, 5, 0, 0, 2, 0, 0, 0, 0, 0, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 5, 4, 3, 0, 2, 0, 0, 0, 0, 0, 0, 13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 7, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0

Offset

1,2

Comments

A005843 seems to begin over an over again at row indices equal to powers of two. Similarly A008585 repeats itself at row indices equal to powers of three.

Links

Table of n, a(n) for n=1..105.

Prog

(Excel) =if(row()>=column(); if(mod(row(); column())=0; lookup(row()/column(); A000027; A001414; 0); ")

Crossrefs

Cf. A001414, A005843, A008585.

Sequence in context: A357761 A284823 A131104 * A167990 A071391 A102390

Adjacent sequences: A141698 A141699 A141700 * A141702 A141703 A141704

Keyword

nonn,tabl

Author

Mats Granvik, Jun 30 2008, Jul 01 2008

Status

approved