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A364715
Numbers k such that d(k) < d(k+1) < d(k+2), where d(n) is the number of divisors of n.
2
61, 62, 73, 163, 187, 193, 194, 206, 254, 274, 277, 278, 283, 313, 355, 361, 362, 397, 398, 403, 421, 422, 427, 454, 457, 458, 482, 493, 523, 538, 583, 613, 614, 661, 673, 691, 733, 746, 757, 758, 763, 823, 853, 866, 889, 926, 934, 943, 955, 997, 998, 1003, 1027
OFFSET
1,1
PROG
(PARI) isok(n) = numdiv(n)<numdiv(n+1) && numdiv(n+1)<numdiv(n+2);
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Seiichi Manyama, Aug 04 2023
STATUS
approved