Board Thread:Off Topic/@comment-31320657-20170216194059/@comment-26446727-20170220145801

61.

2^5+2^4+2^3+2^2+2^0.

2*3^3+2*3^1+1*3^0.

3*4^2+3*4^1+1*4^0.

2*5^2+2*5^1+1*5^0.