Original entry on oeis.org
1, 2, 1, 24, 64, 540, 8640, 34560, 103680, 3326400, 23224320, 96768000, 764225280, 24385536000, 108391219200, 1097349120000, 29847896064000, 347640201216000, 12239832084480000, 2008587829248000, 365022211276800000
Offset: 1
A101176
Final terms of rows of triangle in A101174.
Original entry on oeis.org
2, 4, 6, 10, 16, 21, 28, 36, 48, 55, 66, 80, 91, 105, 121, 137, 153, 172, 190, 211, 231, 254, 278, 302, 328, 355, 383, 412, 443, 472, 505, 538, 573, 610, 647, 685, 723, 764, 803, 848, 892, 937, 981, 1030, 1077, 1117, 1177, 1229, 1281, 1337, 1389, 1442, 1502
Offset: 1
A101174
Triangle formed by grouping the natural numbers so that the n-th row contains n numbers whose product has exactly n prime divisors, minimizing (1) final term of row and (2) product of terms of row.
Original entry on oeis.org
2, 3, 4, 1, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 48, 44, 46, 47, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72
Offset: 1
Triangle begins:
2
3,4
1,5,6
7,8,9,10
11,12,13,14,16
15,17,18,19,20,21
22,23,24,25,26,27,28
29,30,31,32,33,34,35,36
37,38,39,40,41,42,43,45,48
44,46,47,49,50,51,52,53,54,55
56,57,58,59,60,61,62,63,64,65,66
67,68,69,70,71,72,73,74,75,76,77,80
78,79,81,82,83,84,85,86,87,88,89,90,91
A101175
Initial terms of rows of triangle in A101174.
Original entry on oeis.org
2, 3, 1, 7, 11, 15, 22, 29, 37, 44, 56, 67, 78, 92, 106, 119, 136, 154, 169, 191, 210, 232, 252, 273, 297, 323, 343, 364, 392, 420, 450, 480, 506, 532, 567, 595, 625, 660, 690, 726, 759, 798, 833, 867, 900, 980, 1020, 1020, 1054, 1092, 1134, 1178, 1218, 1265
Offset: 1
A101177
Product of terms in n-th row of triangle in A101174.
Original entry on oeis.org
2, 12, 30, 5040, 384384, 36628200, 5967561600, 1220096908800, 350804594649600, 97292707463952000, 42873948150095462400, 21336925409736330240000, 11640487097965528951948800, 7998487694738166709923840000
Offset: 1
Showing 1-5 of 5 results.
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