A093898 Triangle read by rows: T(n,r) = n^r + r^n (1 <= r <= n).
2, 3, 8, 4, 17, 54, 5, 32, 145, 512, 6, 57, 368, 1649, 6250, 7, 100, 945, 5392, 23401, 93312, 8, 177, 2530, 18785, 94932, 397585, 1647086, 9, 320, 7073, 69632, 423393, 1941760, 7861953, 33554432, 10, 593, 20412, 268705, 2012174, 10609137, 45136576
Offset: 1
Examples
2, 3, 8, 4, 17, 54, 5, 32, 145, 512, 6, 57, 368, 1649, 6250, 7, 100, 945, 5392, 23401, 93312,
Crossrefs
Same information as A055652. - Franklin T. Adams-Watters, Oct 26 2009
Programs
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Maple
T:=(n,r)->n^r+r^n: for n from 1 to 10 do seq(T(n,r),r=1..n) od; # yields sequence in triangular form # Emeric Deutsch, Feb 04 2006
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Mathematica
Flatten[Table[n^r+r^n,{n,10},{r,n}]] (* Harvey P. Dale, Jun 19 2011 *)
Extensions
More terms from Emeric Deutsch, Feb 04 2006