

A111624


Second lower diagonal of A109626.


1



1, 4, 5, 2, 7, 8, 3, 10, 11, 8, 13, 14, 5, 16, 17, 12, 19, 20, 14, 22, 23, 24, 25, 26, 9, 28, 29, 10, 31, 32, 33, 34, 35, 24, 37, 38, 26, 40, 41, 14, 43, 44, 15, 46, 47, 16, 49, 50, 51, 52, 53, 36, 55, 56, 38, 58, 59, 60, 61, 62, 63, 64, 65, 22, 67, 68, 46, 70, 71, 72, 73, 74, 75
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OFFSET

3,2


LINKS

Table of n, a(n) for n=3..75.


MATHEMATICA

f[n_] := f[n] = Block[{a}, a[0] = 1; a[l_] := a[l] = Block[{k = 1, s = Sum[ a[i]*x^i, {i, 0, l  1}]}, While[ IntegerQ[ Last[ CoefficientList[ Series[(s + k*x^l)^(1/n), {x, 0, l}], x]]] != True, k++ ]; k]; Table[a[j], {j, 0, 128}]]; g[n_, m_] := f[n][[m]]; Table[ g[n, n  2], {n, 3, 75}]


CROSSREFS

Cf. A109626.
Sequence in context: A130144 A118472 A194880 * A019815 A281143 A200684
Adjacent sequences: A111621 A111622 A111623 * A111625 A111626 A111627


KEYWORD

nonn


AUTHOR

Paul D. Hanna and Robert G. Wilson v, Aug 01 2005


STATUS

approved



