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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A104472 Triangle of degree numbers for certain polynomials.

Original entry on oeis.org

1, 2, 4, 3, 5, 8, 4, 8, 11, 15, 5, 9, 12, 16, 21, 6, 12, 18, 22, 27, 33, 7, 13, 19, 23, 28, 34, 41, 8, 16, 22, 30, 35, 41, 48, 56, 9, 17, 26, 34, 39, 45, 52, 60, 69, 10, 20, 29, 37, 47, 53, 60, 68, 77, 87, 11, 21, 30, 38, 48, 54, 61, 69, 78, 88, 99, 12, 24, 36, 48, 58, 70, 77, 85
Offset: 1

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Author

Wolfdieter Lang, Mar 24 2005

Keywords

Comments

This is the array ay(N,m)= A104471(n+m-1,m) with numbers m>N omitted because they are identical with ay(N,N).
a(n,m)=sum(j*floor(n/j),j=1..m), n>=m and zero else (but actually one should repeat the a(n,n) numbers for n

Examples

			[1]; [2,4]; [3,5,8]; [4,8,11,15]; [5,9,12,16,21]; ...

Links

Crossrefs

Main diagonal a(n, n)= A024916(n), n>=1.

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