A272080 Row sums of A238498.

1, 2, 5, 10, 22, 38, 110, 178, 378, 698, 1766, 2618, 7442, 11006, 26482, 58226, 123698, 178310, 502490, 719802, 1814954, 3737154, 8601674, 11944562, 33535586, 54001022, 120654206, 217935362, 518197346, 718356542, 2441734706, 3392584002, 7055236194, 13981570658

Offset: 0

Author

Tom Edgar, Apr 19 2016

Keywords

• nonn

Links

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

Crossrefs

Cf. A001615, A238498.

Programs

Sage

P=[0]+[i*prod([(1+1/x) for x in prime_divisors(i)]) for i in [1..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])