A103480 Row sums of A103462.

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

0,2

Links

Table of n, a(n) for n=0..24.

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.

Crossrefs

Sequence in context: A317718 A357931 A103104 * A024826 A291481 A385868

Adjacent sequences: A103477 A103478 A103479 * A103481 A103482 A103483

Keyword

easy,nonn

Author

Paul Barry, Feb 07 2005

Status

approved