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A288354 Strings of 4 digits from 1...9, such that no formula using the single digits in the given order exists that evaluates to 0. 6

%I

%S 1251,1261,1271,1272,1273,1281,1282,1283,1291,1292,1294,1295,1316,

%T 1317,1318,1319,1354,1356,1361,1365,1367,1371,1372,1376,1378,1381,

%U 1383,1387,1389,1391,1392,1394,1398,1417,1418,1419,1424,1464,1465,1467,1468,1471,1475,1476,1478,1479,1481,1486,1487,1489,1491,1492,1497,1498

%N Strings of 4 digits from 1...9, such that no formula using the single digits in the given order exists that evaluates to 0.

%C For definitions and comments see A288350. The b-file provides all A288351(4)=1500 sequence terms.

%H Hugo Pfoertner, <a href="/A288354/b288354.txt">Table of n, a(n) for n = 1..1500</a>

%Y Cf. A288350, A288351, A288353, A288355, A288356.

%K nonn,base,fini,full

%O 1,1

%A _Hugo Pfoertner_, Jun 08 2017

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Last modified May 20 10:33 EDT 2022. Contains 353871 sequences. (Running on oeis4.)