cp's OEIS Frontend

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.

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A103480 Row sums of A103462.

Original entry on oeis.org

1, 2, 4, 7, 13, 28, 72, 217, 741, 2790, 11388, 49875, 232781, 1151928, 6018800, 33087221, 190780229, 1150653938, 7241710948, 47454745823, 323154696205, 2282779990516, 16700904488728, 126356632390321, 987303454928997
Offset: 0

Views

Author

Paul Barry, Feb 07 2005

Keywords

Formula

a(n)=sum{k=0..n, (n-k)^k}+n=sum{k=0..n, k^(n-k)}+n; a(n+1)=A026898(n)+n+1.

A103481 Diagonal sums of A103462.

Original entry on oeis.org

1, 1, 2, 3, 4, 6, 9, 16, 31, 69, 168, 447, 1274, 3862, 12351, 41472, 145661, 533745, 2036158, 8071795, 33192800, 141351726, 622384741, 2829417288, 13263528363, 64038928741, 318121600708, 1624347614751, 8517247764150, 45822087138894
Offset: 0

Views

Author

Paul Barry, Feb 07 2005

Keywords

Formula

a(n)=sum{k=0..floor(n/2), k^(n-2k)+1-0^(n-2k)}; a(n)=sum{k=0..floor(n/2), k^(n-2k)}+floor((n+1)/2).
Showing 1-2 of 2 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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