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A073213
Sum of two powers of 17.
5
2, 18, 34, 290, 306, 578, 4914, 4930, 5202, 9826, 83522, 83538, 83810, 88434, 167042, 1419858, 1419874, 1420146, 1424770, 1503378, 2839714, 24137570, 24137586, 24137858, 24142482, 24221090, 25557426, 48275138, 410338674, 410338690, 410338962, 410343586
OFFSET
0,1
FORMULA
T(n,m) = 17^n + 17^m, n = 0, 1, 2, 3, ..., m = 0, 1, 2, 3, ... n.
Bivariate g.f.: (2 - 18*x)/((1 - x)*(1 - 17*x)*(1 - 17*x*y)). - J. Douglas Morrison, Jul 26 2021
EXAMPLE
T(2,0) = 17^2 + 17^0 = 290.
Table T(n,m) begins:
2;
18, 34;
290, 306, 578;
4914, 4930, 5202, 9826;
83522, 83538, 83810, 88434, 167042;
...
MATHEMATICA
Flatten[Table[Table[17^n + 17^m, {m, 0, n}], {n, 0, 7}]] (* T. D. Noe, Jun 18 2013 *)
Union[Total/@Tuples[17^Range[0, 10], 2]] (* Harvey P. Dale, Apr 09 2015 *)
CROSSREFS
Cf. A001026 (powers of 17).
Equals twice A073221.
Sums of two powers of n: A073423 (0), A007395 (1), A173786 (2), A055235 (3), A055236 (4), A055237 (5), A055257 (6), A055258 (7), A055259 (8), A055260 (9), A052216 (10), A073211 (11), A194887 (12), A072390 (13), A055261 (16), A073214 (19), A073215 (23).
Sequence in context: A193598 A190047 A166259 * A086490 A085876 A099904
KEYWORD
easy,nonn,tabl
AUTHOR
Jeremy Gardiner, Jul 20 2002
STATUS
approved