A098379 Maximum entry in the n-th row of the triangle A097883.

1, 3, 7, 11, 19, 25, 37, 41, 53, 61, 77, 89, 101, 121, 131, 149, 167, 183, 205, 225, 247, 269, 293, 319, 349, 373, 401, 425, 457, 487, 527, 559, 583, 629, 655, 701, 731, 779, 807, 851, 887, 935, 971, 1025, 1061, 1117, 1155, 1213, 1253, 1315, 1357, 1419, 1461

Offset

0,2

Comments

All entries are odd.

Links

Table of n, a(n) for n=0..52.

Mathematica

a[0, 0] = 1; a[m_, n_] := a[m, n] = Block[{p = Sort[ Flatten[ Join[ Table[ a[i, j], {i, 0, m - 1}, {j, 0, i}], Table[ a[i, j], {i, m, m}, {j, 0, n - 1}]] ]]}, k = Complement[ Range[ p[[ -1]] + 1], p][[1]]; While[ Position[p, k] != {} || If[n == 0, GCD[k, a[m - 1, 0]] != 1, If[n == m, GCD[k, a[m - 1, m - 1]] != 1, GCD[k, a[m - 1, n]] != 1 || GCD[k, a[m - 1, n - 1]] != 1]], k++ ]; k]; Table[ Max[ Table[ a[m, n], {n, 0, m}]], {m, 0, 52}]

Crossrefs

Cf. A097883, A098380.

Sequence in context: A354801 A141101 A236632 * A329482 A049754 A191114

Adjacent sequences: A098376 A098377 A098378 * A098380 A098381 A098382

Keyword

nonn

Author

Leroy Quet and Robert G. Wilson v, Sep 04 2004

Status

approved