A083790
Smallest start of n consecutive numbers with distinct prime signatures.
Original entry on oeis.org
1, 1, 4, 6, 8, 23, 24, 1804, 1968, 8375, 53750, 243864, 639324, 41381620, 102621343, 7802708736, 7802708736, 178874468615, 1133934949368
Offset: 1
A124058 gives another version of the same sequence.
A083788
Triangle read by rows, in which n-th row contains smallest set of n consecutive numbers with distinct prime signatures.
Original entry on oeis.org
1, 1, 2, 4, 5, 6, 6, 7, 8, 9, 8, 9, 10, 11, 12, 23, 24, 25, 26, 27, 28, 24, 25, 26, 27, 28, 29, 30, 1804, 1805, 1806, 1807, 1808, 1809, 1810, 1811, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 8375, 8376, 8377, 8378, 8379, 8380, 8381, 8382, 8383, 8384
Offset: 1
1;
1,2;
4,5,6;
6,7,8,9;
8,9,10,11,12;
23,24,25,26,27,28;
24,25,26,27,28,29,30;
1804,1805,1806,1807,1808,1809,1810,1811;
1968,1969,1970,1971,1972,1973,1974,1975,1976;
8375,8376,8377,8378,8379,8380,8381,8382,8383,8384;
53750,53751,53752,53753,53754,53755,53756,53757,53758,53759,53760;
...
Row 4 contains 6,7,8 and 9 with prime signatures p*q,p,p^3,p^2 respectively.
Original entry on oeis.org
1, 2, 6, 9, 12, 28, 30, 1811, 1976, 8384, 53760, 243875, 639336, 41381633, 102621357, 7802708751, 7802708752, 178874468632, 1133934949386
Offset: 1
Showing 1-3 of 3 results.
Comments