A101755 Indices of highly composite triangular numbers.
1, 2, 3, 7, 8, 15, 24, 32, 35, 63, 80, 104, 224, 384, 560, 935, 1224, 1664, 1728, 2015, 2079, 5984, 12375, 14399, 21735, 41040, 78624, 98175, 123200, 126224, 165375, 201824, 313599, 395199, 453375, 1056159, 1154439, 1324224, 1890944, 2203200, 2756159, 6969599
Offset: 1
Keywords
Links
- Charles R Greathouse IV and Donovan Johnson, Table of n, a(n) for n = 1..70 (first 55 terms from _Charles R Greathouse IV_).
Programs
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PARI
r=0;for(n=1,1e7,t=if(n%2,numdiv(n)*numdiv((n+1)/2),numdiv(n/2)*numdiv(n+1));if(t>r,r=t;print1(n", "))) \\ Charles R Greathouse IV, Feb 01 2013