A349092 Where zeros occur in A349084. These correspond to rationals, 0 < p/q < 1, that have no solution p/q = 1/w + 1/x + 1/y + 1/z, 0 < w < x < y < z.

136, 252, 253, 405, 406, 465, 560, 561, 666, 703, 741, 810, 814, 818, 820, 895, 900, 901, 902, 1032, 1034, 1070, 1073, 1074, 1078, 1079, 1080, 1081, 1174, 1225, 1273, 1326, 1370, 1373, 1376, 1377, 1378, 1485, 1587, 1596, 1649, 1650, 1652, 1653, 1681, 1682, 1700, 1702, 1706, 1707, 1708, 1709, 1710, 1711, 1808

Offset

1,1

Comments

For index k, p/q = A002260(k)/A003057(k).

Links

Jud McCranie, Table of n, a(n) for n = 1..687

Example

136 is a term because A349084(136)=0, indicating that 16/17 = 1/w + 1/x + 1/y + 1/z has no solution.

Crossrefs

Cf. A349082, A002260, A003057, A349090, A349091.

Sequence in context: A264958 A262615 A101335 * A098215 A247439 A183635

Adjacent sequences: A349089 A349090 A349091 * A349093 A349094 A349095

Keyword

nonn

Author

Jud McCranie, Dec 12 2021

Status

approved