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A225252 T(n,k) = number of distinct values of the sum of n products of two 0..k integers. 6

%I #11 Sep 04 2023 16:36:52

%S 2,4,3,7,8,4,10,16,12,5,15,27,25,16,6,19,42,43,34,20,7,26,59,67,59,43,

%T 24,8,31,81,95,92,75,52,28,9,37,105,130,131,117,91,61,32,10,43,134,

%U 169,179,167,142,107,70,36,11,54,167,215,233,228,203,167,123,79,40,12,60,203,267

%N T(n,k) = number of distinct values of the sum of n products of two 0..k integers.

%H R. H. Hardin, <a href="/A225252/b225252.txt">Table of n, a(n) for n = 1..1325</a>

%F Empirical: column k is n*k^2 - A225255(k) for large n (n>2 suffices through k=1000).

%e Table starts:

%e ..2..4..7..10..15..19..26..31..37..43...54...60...73...81...90...98..115..124

%e ..3..8.16..27..42..59..81.105.134.167..203..241..285..331..381..436..495..556

%e ..4.12.25..43..67..95.130.169.215.267..324..385..454..527..606..692..784..880

%e ..5.16.34..59..92.131.179.233.296.367..445..529..623..723..831..948.1073.1204

%e ..6.20.43..75.117.167.228.297.377.467..566..673..792..919.1056.1204.1362.1528

%e ..7.24.52..91.142.203.277.361.458.567..687..817..961.1115.1281.1460.1651.1852

%e ..8.28.61.107.167.239.326.425.539.667..808..961.1130.1311.1506.1716.1940.2176

%e ..9.32.70.123.192.275.375.489.620.767..929.1105.1299.1507.1731.1972.2229.2500

%e .10.36.79.139.217.311.424.553.701.867.1050.1249.1468.1703.1956.2228.2518.2824

%e .11.40.88.155.242.347.473.617.782.967.1171.1393.1637.1899.2181.2484.2807.3148

%Y Row 1 is A027384.

%Y Cf. A225255.

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_, May 04 2013

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)