A096519
Solutions to A096509[x]=8, the number of prime-powers [including primes] in neighborhood of x with Ceiling[Log[x]] radius, equals 8.
Original entry on oeis.org
284736, 595953, 855723, 855725, 855726, 855727, 1146785, 1146786, 1146787, 1616612, 1616618, 1616624, 1652884, 1654028, 1718708, 1749272, 1954358, 2176624, 2580658, 2580659, 2580660, 2580661, 2580662, 2831672, 2839942
Offset: 1
A096821
Solutions to Mod[sigma(x),x]=12 of the form p*(p+13)/2 where p is a prime of form=2^j-13, of which j exponents are listed in A096818.
Original entry on oeis.org
24, 304, 127744, 33501184, 8589082624, 10384593717069654320312270165377024, 822752278660603021077484591278411581166520461101278617407586304, 15177100720513508366558296147058741458142670970377727126573378340391656803557965824
Offset: 1
8th term is (2^136)*(-13+2^137) with 83 decimal digits; n=4: a[4]=(2^3)*(16-13)=24;
Showing 1-2 of 2 results.
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