A276448 Numbers n for which A272565(n) > A020639(n).
25, 55, 77, 85, 91, 115, 119, 121, 133, 143, 145, 161, 175, 187, 203, 205, 209, 221, 235, 247, 253, 265, 287, 295, 301, 325, 329, 341, 343, 355, 361, 371, 377, 385, 403, 407, 413, 415, 437, 445, 473, 475, 481, 493, 497, 505, 511, 517, 527, 535, 539, 551, 553, 565, 581, 595, 623, 625, 655, 667, 671, 685, 697, 703, 707, 713, 715, 721
Offset: 1
Keywords
Examples
85 is the fourth number of the fourth row of A255127, which starts with 7: 7, 31, 59, 85, ..., thus A272565(85)=7, while on A083221 it occurs as the sixth term on the third row that starts with 5, thus A020639(85)=5, and 7 > 5, thus 85 is included in this sequence.
Links
- Antti Karttunen, Table of n, a(n) for n = 1..2000