cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-4 of 4 results.

A165479 a(n) = Least i in range [A165478(n),A165478(n+1)] for which abs(A165477(i)) gets the maximum value in that range.

Original entry on oeis.org

43690, 131070, 174761, 262141, 305832, 393212, 436903, 524283, 567974, 655354, 699045, 786425, 830116, 917496, 961187, 1048567, 1092258, 1179638, 1223329, 1310709, 1354400, 1441780, 1485471, 1572851, 1616542, 1703922
Offset: 0

Views

Author

Antti Karttunen, Sep 21 2009

Keywords

Comments

The corresponding maximum values are 570,0,570,0,570,0,570,0,570,0,570,0,570,0,570,0,570,0,... (period 2 sequence). Note that also A165477(87380) = 570 (as 131071 is 4k+3 prime), and A165477(65535) = 285 = 570/2.

Formula

a(n) = floor(n/2)*131071 + (1+2*(n modulo 2))*43690

A165477 Partial sums of A165476.

Original entry on oeis.org

0, 1, 2, 1, 2, 3, 2, 3, 4, 5, 6, 7, 6, 5, 6, 5, 6, 7, 8, 7, 8, 7, 8, 9, 8, 9, 8, 7, 8, 9, 8, 9, 10, 9, 10, 11, 12, 11, 10, 11, 12, 11, 10, 11, 12, 13, 14, 15, 14, 15, 16, 15, 14, 13, 12, 13, 14, 15, 16, 17, 16, 15, 16, 17, 18, 17, 16, 15, 16, 15, 16, 15, 16, 17, 16, 15, 14, 15, 16, 15
Offset: 0

Views

Author

Antti Karttunen, Sep 21 2009

Keywords

Comments

Period 131071. There are no negative values as 131071 is one of the primes in A095102.
See row 12251 in triangle A226518, A000040(12251) = 131071. - Reinhard Zumkeller, Feb 02 2014

Links

Crossrefs

A165487 gives the squared version. Positions of zeros: A165478. See also A165479. Compare also to A165472, A165482.

A165473 Positions of zeros in A165472.

Original entry on oeis.org

0, 6, 8, 10, 16, 24, 28, 30, 32, 46, 50, 52, 54, 56, 72, 74, 76, 78, 80, 82, 84, 288, 292, 294, 300, 302, 360, 364, 370, 372, 374, 376, 378, 382, 394, 400, 402, 416, 418, 420, 422, 424, 426, 808, 810, 818, 820, 1252, 1318, 1320, 1334, 1340, 1342, 1434, 1840
Offset: 0

Views

Author

Antti Karttunen, Sep 21 2009

Keywords

Links

Crossrefs

See also A165474, A165475. Compare also to A165478, A165483.

A165483 Positions of 0's in A165482.

Original entry on oeis.org

0, 22, 24, 26, 28, 30, 32, 36, 38, 58, 170, 172, 174, 182, 184, 186, 190, 192, 194, 204, 206, 212, 216, 218, 224, 226, 228, 230, 236, 238, 240, 242, 248, 256, 260, 266, 268, 270, 300, 306, 308, 320, 322, 324, 326, 328, 330, 332, 334, 336, 350, 356, 8702
Offset: 0

Views

Author

Antti Karttunen, Sep 21 2009

Keywords

Links

Crossrefs

Cf. A165482.
See also A165484, A165485. Compare also to A165473, A165478.
Showing 1-4 of 4 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.