A307033 Even numbers neither in A000010 nor in A001615.
26, 34, 50, 76, 86, 94, 118, 122, 124, 134, 142, 146, 154, 170, 188, 202, 206, 214, 218, 236, 244, 246, 254, 266, 274, 286, 290, 298, 302, 322, 326, 334, 340, 362, 364, 370, 376, 386, 394, 404, 406, 412, 426, 428, 436, 446, 454, 470, 472, 482, 484, 494, 514, 516, 518, 526
Offset: 1
Keywords
Examples
26 is a term because it is not a term of A000010 nor is it a term of A001615. 34 is a term because it is not a term of A000010 nor is it a term of A001615. 14 is not a term because, although it is not a term of A000010, it is a term of A001615.
Links
- Amiram Eldar, Table of n, a(n) for n = 1..10000
Programs
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PARI
dpsi(n) = n * sumdivmult(n, d, issquarefree(d)/d); isnotpsi(n) = for (k=1, n-1, if (dpsi(k) == n, return(0));); return (1); isok(n) = !(n%2) && (!istotient(n) && isnotpsi(n)); \\ Michel Marcus, Mar 22 2019
Extensions
More terms from Michel Marcus, Mar 22 2019