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A272079

Row sums of A238453.

1, 2, 3, 6, 10, 26, 30, 86, 154, 350, 514, 1542, 1930, 5882, 9086, 16242, 30098, 93474, 116174, 368318, 547218, 1050842, 1813030, 5703414, 7256850, 19610282, 33509306, 77004470, 122302250, 393465466, 399187282, 1302847262, 2380228834, 4947581482, 8604927394

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..34.

Tom Edgar, Totienomial Coefficients, INTEGERS, 14 (2014), #A62.

PROG

(Sage) P=[euler_phi(i) for i in [0..100]]

Tr=[[prod(P[1:n+1])/(prod(P[1:k+1])*prod(P[1:(n-k)+1])) for k in [0..n]] for n in [0..len(P)-1]]

print([sum(x) for x in Tr])

CROSSREFS

Cf. A000010, A238453.