[seqfan] Re: Discussion of A14960.

[Joerg Arndt]

Regarding A014942 ( a(1) = 1, a(n) = a(n-1) + n * 24^(n-1) ),

It appears its OGF is simple:

? \r ggf.gpi
? {f=ggf([1, 49, 1777, 57073, 1715953, 49491697, 1387212529, 38078983921, 1028756811505, 27446832213745, 724884022832881, 18985057740861169, 493749574409596657, 12764586312924606193, 328300388160453422833, 8406016915457191128817])}
1/(-576*x^3 + 624*x^2 - 49*x + 1)
? factor(f)

[x - 1 -1]

[24*x - 1 -2]