A364715 -id:A364715 - cp's OEIS frontend

A364716 Numbers k such that d(k) < d(k+1) < d(k+2) < d(k+3), where d(n) is the number of divisors of n.

61, 193, 277, 361, 397, 421, 457, 613, 757, 997, 1213, 1237, 1453, 1657, 1867, 1873, 1933, 2137, 2347, 2593, 2797, 2917, 3013, 3183, 3217, 3361, 3427, 3481, 3517, 3697, 3721, 3805, 4057, 4083, 4177, 4261, 4603, 4621, 4717, 4771, 4813, 4957, 5029, 5041, 5101, 5107, 5223

Offset: 1

Seiichi Manyama, Aug 04 2023

nonn

Cf. A000005, A075028, A364662, A364719.

Cf. A074775, A364715, A364717.

PARI
```
isok(n) = numdiv(n)
				
```

A364717 Numbers k such that d(k) < d(k+1) < d(k+2) < d(k+3) < d(k+4), where d(n) is the number of divisors of n.

Original entry on oeis.org

11371, 11372, 35521, 38281, 45613, 48121, 50821, 50822, 52321, 52322, 54421, 54422, 59341, 59342, 71821, 79621, 86873, 87181, 117841, 125737, 127852, 130021, 130022, 132051, 132206, 133396, 151082, 153221, 173221, 180001, 184973, 186481, 195541, 195542, 196171, 196172

Offset: 1

Seiichi Manyama, Aug 04 2023

nonn

Cf. A000005, A075028, A364720.

Cf. A074775, A364715, A364716.

PARI
```
isok(n) = numdiv(n)
				
```

cp's OEIS Frontend

A364716 Numbers k such that d(k) < d(k+1) < d(k+2) < d(k+3), where d(n) is the number of divisors of n.

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